Online Show & Tell for the week of August 20-24, 2022

Online Show & Tell for the week of Aug 20 – 24, 2022

Reminder: there is no Ramble on August 25. We will resume meeting at the Children’s Garden Arbor on September 1 at 9:00am, as usual.

Many
thanks to the ramblers who sent in photos and stories for this week’s
Online Show & Tell! Keep sending your stories to LCHAFIN@UGA.EDU and
put “Show & Tell” in the subject line so I can keep track of them. The last Online Show & Tell will be posted August 31.

Gary Crider offered this week’s reading as a perfect follow-up to the Great Georgia Pollinator Census last weekend.

Valediction

by Charles W. Pratt

Now the bumbling bees that hover

Over loveliness in flower

Important with their store of pollen

Have had their hour;

Time has come for you to shed your

Silken petals and declare

Whether you are apple, cherry,

Plum or pear,

And all summer take your pleasure

Nourishing the ripening fruit

With the sun and rain you welcome

Through leaf, through root.

Rosemary Woodel sent a wonderful video she made at Wesley Woods Athens in July 2022, entitled “Flight — Birds, Flies, Bees, Wasps, Butterflies and Moths.” Rosemary and her compatriots at WWA created a Connect to Protect Garden, planting
native plants and pollinator-friendly flowers. The results are stunning! Click here to watch the 12 minute video. Here’s a still snipped from her video of a Hummingbird Clearwing Moth visiting a verbena flower cluster.

Thank you, Rosemary!

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This week just happened to include the Great Georgia Pollinator Census. Nature Ramblers were there!

Don Hunter sent in these photos and accompanying narrative about his GGPC adventures…

2022
Great Georgia Pollinator Census, My Madison County Adventures

I
had been really looking forward to this year’s Great Georgia Pollinator Census
so I was quite happy when the weather turned out more favorable than
expected. I was able to go out right after lunch on Friday and do two
counts in the Wild Quinine in a power line right-of-way at the end of our
street. On Saturday, I headed over to the large Georgia Power
right-of-way I have “adopted” to count the pollinators at five different flowering native
plants. 

DAY
ONE – GGPC

Wild Quinine (Parthenium integrifolium) with Carpenter Bee

I
chose to count insects on Wild Quinine because it is a reliable pollinator magnet, drawing in a variety of flies, wasps, bees, and other insects and
bugs. I stopped by to check it out on the 17th and there was a lot of
activity, so I was confident it would be a good location for the count. As
it turned out, at the two locations where I counted, I counted a single
carpenter bee, quite a few small bees, mainly halictid bees, and several
species of wasps. Here are a few pics from the Wild Quinine:

Noble
Scoliid Wasp, center, and a furrow/halictid bee, upper left, on Wild Quinine

Norton’s
Alkalai Bee/Norton’s Nomia, a large sweat bee, on Wild Quinine

DAY TWO – GGPC

On
day two, I drove over to the miracle acre beneath the big Georgia Power power
line in southern Madison County. This is proving to be, perhaps, a relic prairie from the earlier
days when prairies were more commonplace in our neck of the woods.  Linda
and I have identified over 60 species of native plants here, excluding the trees
and grasses. There’s a lot of blooming going on now so it was a natural
for a counting location. I counted at five different plant species,
Southern Mountain Mint (X2), Greater Tickseed, Roundleaf Boneset, Woodland
Sunflower, and Kidneyleaf Rosinweed. I saw mostly wasps, small bees, and
butterflies, with a few flies and other critters. Here are a few photos
from day two, with a story or two.

Great Golden Digger Wasp on Southern Mountain Mint
(Pycnanthemum pycnanthemoides)

My first census location was at a large, bushy Southern Mountain Mint. I found a
place and sat down to lower my profile, and enjoyed a very pleasant 15 minutes of counting, starting off with this Great Golden Digger Wasp. How lucky I was! As I stood up to move on, I looked at
where I was just sitting and saw fire ants boiling all over the place. I
looked around on my legs and pants and only found a few of the ants and started
waiting for the biting to begin. I never got the first bite.  All I
can figure is that one of my butt cheeks must have been planted directly over
the mound entrance, blocking their exit.  On a related note, two years
ago, during the 2020 census, I had just gotten five minutes into one of my counts
when I noticed the unmistakable sensation of fire ants biting my ankles and
shins.  Not one wanting to waste a count, I stood my ground, enduring the
bites, which probably numbered in the twenties or thirties, until the fifteen
minutes were up.  I then bailed off to a safe locations to pull of my
shoes and socks and remove any remaining ants. 

Eastern Tiger Swallowtail on Southern Mountain Mint

My
original intentions were to count and photograph the swallowtails at a large
patch of Joe-Pye Weed across the road from the “miracle acre,” but this
was not to be. When I was at the location just a day earlier, the
swallowtails were swarming a ditch full of Joe Pye Weed. When I arrived today, I
was met with this sight:

Former Joe-Pye Weed patch, now a mown right-of-way

A bee fly showdown was underway when I arrived at this Greater Tickseed (Coreopsis major) flower head (below). I’ve been seeing the Geron sp.
flies for the past several years, but the Exoprosopa is a new species for
me. Katherine has also seen this larger species in her yard in the past
several days.

Small bee fly (Geron sp.) on the tip of upper ray flower, and a larger bee
fly, Exoprosopa brevirostris, nectaring on disk flowers.

A lovely Horace’s Duskywing on Greater Tickseed.
There were quite a few of these around.

Beautiful Golden-reined Digger Wasp on Southern Mountain Mint


Looking
forward to my fifth year of counting in 2023!

 

Thank you, Don!

************************************************************************

From Roger and Betsey Collins who have rambled Alaska the
past three weeks: 

We have enjoyed being in a Maritime Rainforest ecology.  High temperature
is usually 55. Just want to share a couple of items. 

I was wearing my blue Ramblers t-shirt the day I climbed
Flat
Top Mountain (3,510 feet elevation) near Anchorage.

I made this photo of Roundleaf Sundew (Drosera rotundaflora) on a nature trail
near Homer, Alaska. This is the same species as the sundew, 3000 miles away in the
pine woods of South Georgia, of my childhood. Despite its sparkly dew
appearance, it can be inconspicuous on a forest floor. I learned that a major
part of their diet is mosquitoes.


 

One morning a pair of Sand Hill Cranes came by our front door. While related to
the cranes that migrate over Georgia, these guys will be flying back to
California and Mexico.

Thank you, Roger and Betsey!

*************************************************************

From Cynthia Beane

My
sweet dog Henry has a nose for finding box turtles in our woods. Look
closely under the leaves and you can see her shell. So far we have
located a male and a female living in our small forest.

I found this Carolina Lily, Lilium michauxii, on the Blue Ridge Parkway growing on a slope above a roadside ditch. Carolina Lily has fewer flowers per plant than Turk’s Cap Lily, and its leaves are widest above the middle.


Not too far away from the Carolina Lily, I found a small field of Yellow Fringed Orchid, Platanthera ciliaris. There is also a smaller population of these fringed orchids in North Carolina’s Stone Mountain State Park. The Stone Mountain orchids were found growing in an open power line field.

Note from Linda: It is a mystery to me why this species is named Yellow Fringed Orchid when it is clearly orange. By whatever name, it is a highlight of the mountains in August.


Thanks, Cynthia!

***********************************************************************

Emily recommends this article from the Washington Post: “Want to see how climate change is stressing bees? Look at their wings.” Thanks, Emily!

  ***********************************************************************

Dale recommends this “In Defense of
Plants”
podcast about native azalea pollination by way of swallowtail wings.
Look for episode 376, featuring the researcher Mary Jane Epps who discovered the phenomena of wing pollination in Flame Azalea pollination.
Almost all of the hundreds of podcasts “In Defense of
Plants” are interesting. 

Further recommendation by Dale: a PBS Nature video (Season 36, episode 12) with remarkable footage
of butterflies: “Sex, Lies, and Butterflies.” The story of the wing-pollinated azalea begins at minute 16 and lasts about 4 minutes, but the whole video is fascinating with gorgeous photography. If you were about skeptical wing-pollination, seeing the strands
of sticky pollen being pulled from anthers may convince you. You can also view the program here.

Thank you, Dale!

*****************************************

Gary Crider
is spending the dog days of August roaming the woods at the Botanical
Garden and other public lands in Clarke County and killing invasive
plants, especially Perilla, aka Beefsteak Plant (Perilla frutescens).

Identifying Perilla can be tricky. Perilla will always have the typical mint family traits of a
square stem, opposite leaves, and aromatic leaves, in this case a
distinctive, basil-like
smell. But t
here’s
a lot of variation in the height of
mature plants, anywhere from 5 inches to 5 feet. And the leaf margins can vary
from
merely toothed to almost frilly and may be purple-ish or just plain
green.

Perilla patch along the new ADA Trail in the powerline right-of-way at the
Botanical Garden. These plants were 4 feet tall before treatment.

 

Perilla patch after treatment with a mix of hand-pulling and herbicide
Patch of Perilla seedlings surrounded by mature plants,
showing how densely this species can occur.The good news is that the species is an annual; if you kill a plant before it sets seed, that plant will not be back.

 

Perilla patch soon after spraying with a low concentration of Triclopyr. This herbicide is specific to broad-leaf plants and does not affect grasses or needle-leaved conifers. A few minutes of spraying wiped out thousands of these plants. Triclopyr is not harmful to animals and does not persist in the environment.

Thanks, Gary!

**********************************************************

Note from Linda: there’s been a lot of talk on my neighborhood listserve lately about what to do with rescued wild animals. Here’s a suggestion from a neighbor that might be of interest: “The
Atlanta Wild Animal Rescue Effort (AWARE) is a wonderful organization at Arabia
Mountain (near Atlanta). They will take injured or abandoned wildlife and try
to save and restore the animal to good health to be released back into its
natural habitat.”

**********************************************************

Linda has been doing some late summer botanizing around the county. Here are a few mostly terrible photos to prove it.

Sparkleberry (Vaccinium arboreum) leaves with a fungal gall called Fly-speck Leaf Spot, Ophiodothella vaccinii. I identified this gall using Gallformers.org,
thanks to Bill Sheehan’s class a few weeks ago.

Mockernut Hickory (Carya tomentosa) fruits

Chalk Maple (Acer leucoderme) fruits
Flowering Dogwood (Cornus florida) fruits and leaves that seem
to have given their all to support biodiversity
Hop Hornbeam (Ostrya virginiana) has already produced next year’s staminate (pollen) catkins at the tips of twigs. They will overwinter and expand early next spring, releasing pollen. Pistillate (fruiting) catkins develop in the spring.
Butterfly Pea (Centrosema virginianum)
tightly twined around a Wingstem plant
Elephant’s Foot (Elephantopus tomentosus)
Flowering Spurge (Euphorbia corollata)
Low St. John’s-wort (Hypericum stragulum)
Pencil Flower (Stylosanthes biflora)
Arrow-arum (Peltandra virginica) growing with False Nettle
and Lizard’s Tail in the Middle Oconee River floodplain
False Nettle (Boehmeria cylindrica) with the last of this year’s flowers
Lizard’s Tail (Saururus cernuus) with pale, long, narrow fruit clusters

Online Show & Tell for the week of August 14 – 20, 2022

 Online Show & Tell for the week of August 14 – 20, 2022

Many thanks to the ramblers who sent in photos and stories for this week’s Online Show & Tell! Keep sending your stories to LCHAFIN@UGA.EDU and put “Show & Tell” in the subject line so I can keep track of them. 

Reading  (From Donald Culross Peattie’s An Almanac for Moderns) 

 

AUGUST FOURTEENTH 

 

    As soon as the green and violet hour of summer dusk is at
hand and the bats begin to sweep the sky for midges, the voice of the
whippoorwill rises out of the hollow below my house. This will be but the
beginning of his whipping of poor Will (that luckless lad) and when first I
hear it I can very nearly enjoy it. For it is a nostalgic and intensely American
sound, and one that goes back, as we find nearly everything precious does, to
childhood.

    How often have I wakened gently, to hear, down in the valley,
the strange, contented calling of the whippoorwill, and lain awhile to breathe
the wind of the night fields, fresh with dew and the scent of sweet clover, and
drifted again to sleep, while he sang, thinking of the benediction of night
after the burning summer days.

Bill Sheehan sent in the following text and photos on August 18…. “I had a fun day
yesterday looking under leaves for galls. Two particularly exciting (to me)
finds:

Sawfly egg chambers and larvae! 

An artsy Water Oak
leaf embroidered by a Sawfly mama.

Sawflies are a kind of herbivorous wasp.
Turns out the “saw”
is part of the ovipositor used for inserting eggs in the
EDGE of the leaf.

Evenly spaced Sawfly egg chambers on the edge of a Water Oak leaf.
B
its of egg shell are protruding from
the slit EDGE of the leaf.
Who would have thought?

Sawfly larvae busily eating a Water Oak leaf

You can see Bill’s iNaturalist page documenting this find here. He provided this link to a video from France showing a female Sawfly ovipositing in the edge of a leaf.

The second find by Bill….

Pitch Gall Midge on a Loblolly Pine sapling

A gall created by a Pitch Gall Midge (Genus Cecidomyia)
According to this website, the female midge lays her eggs on the twigs of pines in the spring. Tiny larvae hatch from the eggs and bore into the twig, causing resin (pitch) to flow out and envelop the larvae. The larvae then develop inside this mass, subsisting on the resin until they become adults.
Close-up view of the gall
The Gall Midge larvae grow up in the sticky white resin, each with a breathing tube. Who would want to mess with them in a mass of semi-solid turpentine?!

The breathing tubes become escape hatches when the adults are ready to fly. Close-up of the pupal skins left behind in the gall
when the adult flies away


Bill’s iNaturalist page documenting this find is at this link. Further information on this fascinating species can be found here.

And some caterpillars from Bill….

The oh, so aptly named Laugher Moth caterpillar

 

Pretty funny from the top too.

White-streaked Prominent (Ianassa lignicolor)

THANK YOU, BILL!

********************

On August 19, Catherine Chastain wrote “I have been noticing fungi lately – such a strange and beautiful kingdom.”




THANK YOU, CATHERINE!

********************

From Ed Wilde, on August 19….

“A few days ago, Sue and I were walking near one of the retention
ponds here at Presbyterian Village, and we noticed that there were two little frogs in the
bottom of a rain gauge that hangs on the fence surrounding the pond.
There were 3-4 inches of water in the gauge, but the frogs were trapped beneath
the red “float” ring that allows you to see the measurement from a
distance – they were agitated and struggling to move. We took the top off
the gauge, shook it onto the ground, and the frogs fell out and hopped away.

 

Today I was back at the pond, and there were two more frogs
trapped in the gauge – also below the float ring!  I dumped them out like
we did last time, and took a photo of them on the ground – one bright green,
one dark grey – the same colors as the first two. What is going on here!?” Was it raining frogs?
Some answers here….

Update from Ed on August 20: “There was another frog in
the rain gauge this morning.  I guess they are crawling up the fence
post and then into the tube through the top openings (below) – which are
quite small.  Wonder what is attracting them to it – maybe some kind of
smell left by the original ‘inhabitants’?”

THANK YOU, ED!

**************************************************

 

Ramble Report August 11 2022

Leader for
today’s Ramble:
Linda

 

Author of today’s Ramble Report: Linda

 

Insect and fungi identifications: Don Hunter, Bill Sheehan, Heather Larkin

 

Link to Don’s Facebook album for this Ramble. All the photos that appear in this
report, unless otherwise credited, were taken by Don Hunter.

 

Number of
Ramblers today:
34, with two new ramblers — welcome, Mary and Robin!

 

Bumper crop of ramblers today!

 

Reading: “The Dragonfly” by Louise Bogan, from The Blue Estuaries: Poems 1923-1968. 

 

You are made of almost nothing
But of enough
To be great eyes
And diaphanous double fans;
To be ceaseless movement,
Unending hunger,
Grappling love.

Link between water and air,
Earth repels you.
Light touches you only to shift into iridescence
Upon your body and wings.

Twice-born, predator,
You split into the heat.
Swift beyond calculation or capture
You dart into the shadow
Which consumes you.

You rocket into the day.
But at last, when the wind flattens the grasses,
For you, the design and purpose stop.

And you fall
With the other husks of summer.

**************************************

 

Show and
Tell:
Kathy brought a stem of Poke Salad (aka Pokeweed), its leaves skeletonized by… …what? As it turns out, Poke is one of the many plants that the caterpillars of the Giant Leopard Moth feed on. (Here is a list of its many other hosts as well as some other good info about this species.) The Giant Leopard Moth is an elegant black-and-white creature, and its larvae are the caterpillars known as Giant Woolly Bears. Kathy extolled the virtues of the “lowly” Poke Salad plant because its deep taproots have broken up the hard clay subsoil in her garden and converted it to black topsoil. She commented that the seeds remain viable in the soil for up to 40 years, which may explain why we see Poke Salad showing up in sunny openings in what otherwise appear to be intact forests.


Bill brought a Skiff Moth Caterpillar, left, which is in the Slug Caterpillar Family (Limacodidae), as its inactivity this morning seemed to reflect. Below is a photo of the adult moth.

Photo by Andy Reago and Chrissy McClarren

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  

Still snip from Don’s video
of the parasitoid wasps

 Bill
also brought an actively hatching mass of parasitoid wasp eggs, safely    ensconced
in a small clear plastic viewing case.  Many
tiny wasps, recently hatched, could be seen moving around in the case.The wasp eggs were lain inside the eggs of another insect, and when the wasp eggs hatched, the wasp larvae consumed the egg
contents, destroying the original inhabitants. Here is a link to a video that Don shot of the tiny wasps swarming over the eggs. No telling whose eggs those once were.

 

 

 

 

 

 

 

Closeup photo of one of the parasitoid wasps, no larger than a gnat

Dr. Sher Ali
brought a hat from Elandan Gardens, in Bremerton, Washington, where he and
Barbara recently visited on their tour of the Pacific Northwest and Alaska. Elandan is famous for its world-class
bonsai collection and lushly
landscaped gardens on the shores of Puget Sound.

 

 

 

 

Gorgeous blue Cobalt Crust Fungus brought in by Carla

 

Announcements: Get your new Rambler t-shirts and hoodies! Here! Or here:
http://natureramblers.satisfactoryprinting.com/nature_ramblers/shop/home

The sale closes on Sunday so here’s hoping you are reading this in time!

 

Today’s
Route:
We visited the International Garden and Physic Garden, before heading downslope on the Purple Trail. We returned via the Purple Trail Connector through the Flower
Garden and the
Heritage Garden.

 

Today’s emphasis:  Seeking what we found in the International Garden, Herb and Physic Garden, Purple Trail, Flower Garden, and Heritage Garden

OBSERVATIONS:

 

A patch of Cherokee Sedge, native to the southeastern U.S., is beginning to shed its seeds. It’s a sedge in the genus Carex, which is distinguished by the tiny sacs that surround each even-smaller seed. In Cherokee Sedge, the sacs are held in drooping clusters near the top of a three-sided stem. It was time to revisit the old jingle about the stems of grass-like plants: “Sedges have edges, rushes are round, and grasses have joints [or knees] all the way to the ground.”

 

Cherokee Sedge occurs in many Piedmont bottomlands.
It flowers in the spring and sheds its seeds in late summer and fall.
The seeds are held in the tiny sacs that make up the lower cluster;
the spent male flowers are in the two clusters above.

 

Clasping Heliotrope is a pretty but weedy species
found in many of the beds at the Garden

                                                                               

 

Looking down on Chamber Bitter, you think these plants resemble mimosa and must be in the bean family, right? Surely that’s a compound leaf with many leaflets along a rachis? And the leaves fold up, just like mimosa! But
flip over what appears to be a single leaf, and you’ll see a line of
minute flowers that belies our assumption. Each of those flowers arise
from what we now realize is a stem
not a midribbearing numerous flowers and leaves.

This is a species where there are flowers with pistils only (“female flowers”) and flowers with stamens only (“male flowers”). The flowers near the base of the stem are pistillate and have produced fruits (the round green things). The flowers toward the tip of the branch are staminate and are just now developing, which prevents self-pollination. This condition — where both sexes are on the same plant but in separate flowers — is termed monoecious (moe-nee-shus), literally “one house.”  Chamber Bitter is a ubiquitous weed, imported from Asia and once used in treating urinary disorders (check out its scientific name in the list below). It is an annual.

Common Olive planted in the Physic Garden.
The fruits are the source of olive oil and the many types of olives we eat. The differences
in color and taste are due to the time of harvesting and the type of processing the fruits receive.


Feverfew tucked in among other plants in the Physic Garden.
A native of the Balkan Peninsula, Anatolia, and the Caucasus, it has a long history as a medicinal plant used for fevers, headaches, and many other ailments.
Here’s a link to an interesting article about the medicinal uses of this species.

Hops vine with female flower clusters twining on an
arbor between the Physic and Heritage Gardens.

Hops flower clusters are used to flavor beer. They also prevent spoilage and were first used to make casks of beer more “shelf-stable” during long sea voyages (thanks, Don!). Female and male flowers are produced on separate plants, that is, they are dioecious (“die – ee – shus”). The “active ingredients” resins and essential oils are produced by special, golden-colored glands found only on female flowers. 

Mulberry Weed is a common weed in the Athens area – even though it’s an herb, it really is in the mulberry family. A native of SE Asia, it was likely introduced with horticultural plants.

Giant Hyssop, a member of the mint family, in the Physic Garden.
It is native to parts of the upper Midwest and Great Plains, and was used
medicinally by Native Americans to treat a number of ailments.

Aerial roots descending from a Muscadine branch

Heading down the Purple Trail, we encountered a favorite Rambler sight: a
curtain of aerial roots descending from a Muscadine vine. They are possibly the result of freezing injury.
Although we’ve stopped by these aerial roots for many years, we’ve
never seen any reach the ground and actually root. Someone speculated
that this is due to deer browsing. Left unbrowsed, they would reach the
ground, take root, and anchor the vine in place.

 

Loblolly Pine cone demolished by a Gray Squirrel

Gray Squirrels love tender, green, unripe pine cones! The whole cone (except the core) is nutritious loaded with fiber and vitamins but the real treat is the high-protein seed tucked between, and protected by, the cone’s tightly closed scales. Squirrels will even stash the green cones; they don’t rot and the seed stays fresh and nutritious through winter’s scarcity. Here’s a fun video of a Gray Squirrel eating a green cone. I recommend turning off the sound on the video and turning up the sound on this as you enjoy the squirrel (Thanks to Gary for musical expertise!)

A very well camouflaged American Toad

An equally well camouflaged Crane-fly Orchid

 

Wondering: are the muted, woodsy colors of Crane-fly Orchid a type of camouflage that protects the flowers from indiscriminate browsers (i.e. deer) and/or from day-flying insect visitors that might remove nectar without pollinating the flowers? (Crane-fly flowers can be pollinated only by night-flying noctuid moths.)

Possumhaw Holly’s fruit, borne at the tip of a “short shoot,” will turn bright red in the fall.

A number of our native trees and shrubs have “short shoots,” like Possumhaw’s, that grow very, very slowly and bear leaves, flowers, and fruits in clusters at their tips, in addition to normal “long shoots.”  In the photo above, you can count at least 10 growth rings on the short shoot, each 1 or 2 mm long, and each representing a year’s growth. By concentrating the leaves, flowers, and fruits at the tip of the shoot, the carbohydrates produced by photosynthesis in the leaves are more readily available to the energy-expensive processes of flowering and fruiting.

Holly definitely won the award for the sharpest eyes when she spotted this
caterpillar resting on a short shoot of the Possumhaw Holly.

Returning through the Heritage Garden, we came upon some Loofah vines bearing  fruits that make a nice meal when fresh and an even nicer sponge when dry, below.

Photo by Rik Schulling, TropCrop – Tropical Crops Services


A Heritage Garden fly gave Don the opportunity to apply his macro chops

Giving Holly a run
for her money in the sharpest eyes category, Bill made an exciting find,
noticing four bits of leaf in the shape of tiny party hats side-by-side
at the edge of an Indigo leaf. Under each “hat” was an even
tinier yellow caterpillar. Bill posted Don’s photos to bugguide.org. The
ID that came back was “Skipper – perhaps Epargyreus clarus
(Silver-spotted Skipper). Larvae of this common butterfly indeed feed on
leguminous plants, and leaf-tying (note the silvery silken threads in the first photo) is a
common trait among Skipper caterpillars. In the second photo below, the caterpillar has
made its first cut toward constructing the protective “hat.”

 

More great fungal diversity today! Here’s a gallery of some of the fungi we saw.

 

Fairy Parachutes live by decomposing woody litter on the forest floor.

Another view of a Fairy Parachute, showing the stalk attached to woody root
Golden-gilled Gerronema is another wood-decaying species.
It ranges in color from creamy white to orange. It would be a mistake
to confuse this toxic species with orange Chanterelles.

Golden-gilled Gerronema, glowing on the forest floor.

Marasmius sullivantii, no common name

Fragile Dapperling: best mushroom name ever


For the second week in a row, Don found a
nice example of a Shaggy Stalked Bolete.
I know it looks like a Christmas cookie left outside for 8 months,
but it’s actually a fungus called Rounded Earthstar.
Ramblers in the Heritage Garden gazebo

SPECIES OBSERVED

Cherokee Sedge     Carex cherokeensis
Clasping Heliotrope     Heliotropium amplexicaule
Chamber Bitter     Phyllanthus urinaria
Common Olive     Olea europaea
Mulberry Weed     Fatoua villosa
Feverfew     Tanacetum parthenium
Hops     Humulus lupulus
Mulberry Weed    Fatoua villosa

Giant Hyssop     Agastache foeniculum
Agrimony     Agrimonia sp.
Indian Pink     Spigelia marilandica
Muscadine/Wild Grape     Muscadinia rotundifolia
Hop Hornbeam     Ostrya virginiana
Yellow-bellied Sapsucker     Sphyrapicus varius
Eastern Gray Squirrel     Sciurus carolinensis
Loblolly Pine      Pinus taeda
Fairy Parachute      Marasmiellus candida
Fragile Dapperling      Leucocoprinus fragillisimus
Golden-gilled Gerronema     Gerronema strombodes
Marasmius sullivantii (no common name)   
Horse Sugar     Symplocos tinctoria
Shaggy Stalked Bolete      Boletellus betula
Crane-fly Orchid     Tipularia discolor
Possumhaw Holly     Ilex decidua
Coral Slime Mold     Ceratiomyxa fruticulosa
Southern Grape Fern     Botrychium biternatum
Chalk Maple     Acer leucoderme
Eastern Redbud     Cercis canadensis
Pandora Sphinx Moth     Eumorpha pandorus
Rounded Earthstar mushroom     Geastrum saccatum
Creeping Cucumber     Melothria pendula
Loofah Vine     Luffa aegyptiaca
Common Eastern Bumble Bee     Bombus impatiens
Wild Indigo Duskywing skipper Erynnis baptisiae
Butterfly Weed     Asclepias tuberosa
Large Milkweed Bug     Oncopeltus fasciatus
Article of the Week: “Which ornamental plants perform best for pollinators?

And another, here, by Charlie Seabrook, environmental journalist for the Atlanta Journal-Constitution and Nature Rambler, writes about galls and Bill Sheehan’s iNaturalist project, Galls of Clarke County, GA, USA.

Ramble Report August 4 2022

 Leader for
today’s Ramble: Heather

Authors of
today’s report: Heather and Linda

Insect, gall,
and plant identifications:
Don
Hunter, Heather Larkin, Dale Hoyt, Linda Chafin

Link to Don’s Facebook
album
for this Ramble. All
the photos that appear in this report, unless otherwise credited, were taken by
Don Hunter.

Number of
Ramblers today:
30 

Show and
Tell:
Gary brought an Elderberry twig and recommended planting it in floodplains after removing Chinese Privet. Elderberry twigs will root if you just stick them into wet soil in
late winter – a technique called “live staking.”  It’s a great wildlife species: the large
flower clusters attract butterflies and other pollinating insects, and the berries
are eaten by as many as 45 bird species. The leaves are also eaten by the
caterpillar of the Cecropia moth, North American’s largest moth. Kathy mentioned that
various plant purveyors are marketing selections from wild examples that have
many more and much larger berries. It’s an easy plant to grow, with hers doing
well and growing to large size.

Elderberry leaf and fruit
Myrna brought a tiny Pipevine Swallowtail
butterfly caterpillar.


Pipevine Swallowtai adult (photo by Sandy Shaull)


Pipevine Swallowtail caterpillars eat only the leaves of Dutchman’s Pipevine and its close relatives in the Birthwort Family. As they eat
the leaves, the caterpillars acquire a toxic plant compound aristolochic
acid
to which they are immune, and then pass it on to the adult form of the butterfly. The acid is then passed along by the females to their eggs. Birds quickly learn to recognize and avoid all stages in the species’ life cycle: the red-spotted caterpillars, the bright blue and black adults, and the red eggs. Several other swallowtails, as well as the Red-spotted Purple butterfly, have evolved similar coloration, a form of mimicry that provides some protection from predators.

Announcements/Interesting
Things to Note:

Reminder: the new versions of Rambler t-shirts
(and a hoodie!) are on sale at the Satisfactory Printing website.
Two of the shirts are cut for women and the other two are unisex. Note that the hoodie is a jacket with a zipper. The sale will end on August 13.
You will have the choice of paying for shipping OR picking up your shirts at
Satisfactory Printing; shirts will NOT be delivered at a ramble. All profits
from the sale will go to the Friends of the Garden. We must have at least 24
items ordered.

Emily passed along that Rambler Jim
McMinn reports that he is getting hip replacement surgery soon and will be
re-joining us in the fall.

The Great Georgia
Pollinator Census is approaching. This year, the counts will be conducted on
August 19 and 20. See the website for
more info. This is a great opportunity to participate in citizen science!

 Linda
introduced two visitors,
former Athenians and avid environmentalists, Gary
Appelson, from Gainesville, Florida and Tom Clements, from Columbia, South Carolina. 

Fan-shaped Jelly Fungus growing in cracks of the split rail fence alongside the Children’s Garden

Today’s route: We left the Children’s Garden arbor and headed first to the fountain and pool outside the Visitor Center, then visited the new garden behind the Ceramics Museum. From there, we made our way to the Flower Garden and the Rose Garden, and returned to the Visitor Center by way of the Heritage Garden.

Today’s
emphasis:  
Hydrophobic foliage and leaf-edge
guttation

Plants whose leaf surfaces repel
water are called hydrophobic plants. “Hydro” is a Greek root word that means water and “phobia” means fear. This
phenomenon has also been named “the lotus effect,” after the large,
water-repelling leaves of the Sacred Lotus and other species of Nelumbo.
Hydrophobia in the plant world is achieved by two modifications to the surfaces
of leaves
a
layer of waxy scales or a coating of hairs
that prevent water droplets from reaching the surface of the leaf. The hairs and scales do not
lie flat – they are formed so that they hold a droplet of water at
such an angle that the surface tension of the water overrides the shape of the
leaf. Meaning, that the water droplet holds the shape of a droplet rather than
spreading out and wetting the leaf (in-depth link).
Many reasons exist for
plants to have evolved these kinds of surfaces, with one of the most obvious being self-cleaning.
Any dust or mud, insect parts or bird droppings are simply rolled up with the
water beads and swept away. This is especially helpful in areas where it mists
a lot but heavy rain isn’t common. The water beads on the leaf surface carry
away the dust and other dirt that accumulates without needing a torrential
downpour. Studies have shown that a build-up of dust and other debris on a leaf surface significantly reduces the photosynthetic capacity of the leaf.

The leaf of a Spurge plant sporting many large water beads.

The
fountain and pool outside the Visitor Center host a number of aquatic plants with hydrophobic leaves.
Bent Alligator-Flag leaves,
held on tall, erect stalks, are covered with a powdery wax. (Note: this
striking plant is sometimes called a canna, but is not even in the Canna family; it
is a member of the tropical  Marantaceae / Arrowroot family.
 

Bent Alligator-flag leaf blades dotted with beads of water

Bent Alligator-flag flowers attract Common Eastern Bumble Bees

The lower lip of a Bent Alligator-flag flower
provides a perfect landing platform for pollinators
.

Looking a lot like duckweed, Mosquito Fern lives within a peatmoss-covered barrier in the pool outside of the Visitor Center
Mosquito Fern held on the tip of hiking pole

Mosquito Fern’s tiny, floating leaves are coated with
hairs that repel water. Eastern Mosquito Fern is native to the eastern U.S.; a
different species, Large Mosquito Fern, is an Asian invasive. Leaves of all
Mosquito Ferns harbor a symbiotic, nitrogen-fixing cyanobacterium, Anabaena
azollae
, which has been  deliberately introduced to rice paddies as
fertilizer for centuries.

Close-up of Dusty Miller leaf surface

Dusty Miller, an Asian plant popular with gardeners because of its white fuzzy surfaces, also repels water.

A sleepy Fiery Skipper greeted us on arrival at the
Ceramic Museum garden

 

 

Hyrdrophobic beading on the leaves of Iris (left) and Little Blue Stem (below)

Aaron’s Rod (AKA Carolina Bushpea or Carolina
lupine), left. Its leaves and stipules were beautifully hydrophobic with many
crisply beaded water drops on the surfaces.

Photo by Bill Sheehan

 

 

Zachary, a member of the horticulture
staff who
attended Bill’s “gall talk” a few weeks ago, found this gall on a stem of a Groundsel Tree, a large, fast-spreading
shrub in the Aster family. This is a soft, communal gall occupied by the larvae of Gall Midges.

Photo by Bill Sheehan

 

 

This close-up photo shows the holes
where the adult Gall Midges exited the gall. Note the white things encircling the exit holes.

Photo by Bill Sheehan

When Bill got the gall home, he was able to look
at it under a microscope. He realized
that the white things are, in fact, the remains of the midge pupae left behind as the adults worked their way out of the gall and flew away.
This photo, right, shows the pupal skin (exuvia) at an exit hole: the head is on the upper side of the
photo, and you can see the outlines of the antennae and legs emerging from the hole.

Bill entered these data into iNaturalist. You
can see his entry here.

The Rose Bed was a great place to see plants with both hydrophobic beading and guttation. Guttation is a plant’s way of ridding itself of
excess water. If atmospheric humidity and soil moisture are high, water builds
up in the plant and is forced out through special cells (called hydathodes)
that line the margins and some surfaces of leaves. The water evaporates later.
Guttation (from
Latin gutta, drop) is not to be confused
with dew,
which condenses randomly from the atmosphere onto the leaf surface and does not
originate from within the plant. Guttation generally happens during the night
time. For more info, click here.

Rose leaves with guttation drops along the margin

Rose leaves with hydrophobic water beads

A leafhopper named Versute Sharpshooter
was hanging out on a watery rose leaf
Guttation droplets on the margin of an Elephant Ear leaf
Tucked between two leaves of Taro plants, a tiny Carolina
Anole, about an inch long, gave Don’s intruding camera a baleful glance.


Anoles are a type of lizard native to the southeastern
United States. They range in color from bright green to dark brown and any
shade between. They can change their color, the only lizard in the Americas to
do so. This has earned them the name of the American chameleon. They are not
true chameleons, though. Juveniles and females have a white stripe down their dorsal ridge. They prey on small insects such as spiders, crickets, and
flies. Like many lizards, Anoles can break off the tip of their tail to
distract a predator while they are running away. It will grow back eventually,
but it is usually not as long or the same shade as the rest of the lizard.

The singing of Annual Cicadas met us as we approached the bottom of the Flower Garden with its surrounding woods. 

 

Smooth Sumac shrubs are flourishing on the north side of the Flower Garden stage, apparently unimpaired by the presence of galls on many of their leaves. 

 

 

We opened several galls and found them mostly
hollow, except for white, waxy fluff. On closer look, we saw many tiny, yellow
aphids moving around on the interior walls of the galls.

 

 

 

In
a blog report from August 2021, Dale illuminated the lives of these tiny
aphids: 

    “At the bottom
of the Flower Garden some of us discovered numerous pouch-like  swellings on the
Sumac leaves and midvein. These are the work of an aphid, called the Sumac Gall
Aphid. In the spring, as the sumac is producing leaves, it is visited by an
aphid that lays a single egg, usually on the mid-vein. The plant reacts by
enveloping the egg with a growth of tissue that begins as a small, spherical
swelling. The egg hatches and the aphid nymph begins feeding by sucking plant
juices. When the nymph becomes sexually mature it starts to produce more aphids
parthenogenetically; i.e., without benefit of a male. Those aphids, in turn,
produce more aphids and the number within a single gall grows exponentially.
Ultimately the aphids leave the gall and migrate to mosses that may be growing
nearby. There they over-winter and in the spring male and female aphids are
produced, mate, and the females fly off to find more sumac, completing the life
cycle.
We opened several
of the thin-walled galls and found them filled with white fuzz. It didn’t dawn
on me what this was until much later: the cast off exoskeletons of hundreds in
not thousands of aphids. Each aphid molts five times before reaching
reproductive age. Given the exponential rate of increase of the aphids and
then multiply by five and you get a gall filled with white fluff.

Visit
this website for
a lot of excellent photographs of the galls and the aphids.”

 

Elsewhere in the Flower Garden, Butterfly Weed with Oleander Aphids
and an unidentified larva


Hammock Spider-lilies blooming near the stage in the Flower Garden

Less appealing was a Hammerhead Planarian, also known as a Shovel-headed Garden Worm, found on one of the large Elephant-Ear leaves.

Hammerhead Planarian, also known as a Shovel-headed Garden Worm is an invasive exotic species that attacks earthworms

 

Dale wrote about this slimy creature in June 2019:

“A planarian is a free-living flatworm (Phylum Platyhelminthes).
Most people have never encountered one, except in biology courses. Those
planarians are aquatic, dark in color and have two eyespots in their head end.
They have the ability to regenerate complete worms when cut in half, either
transversely or longitudinally. When cut lengthwise the right and left halves
regenerate the missing side. If cut the other way, the head end grows a new
tail and the tail end grows a new head.

Flatworms lack a body cavity and a circulatory system. The
free-living species have a mouth in the center of the body (not the head!) that
leads to a  complexly branched digestive tract. Its many branches and
projections allow the products of digestion to diffuse directly into the
surrounding tissue, a function provided by the circulatory system of other
kinds of animals. This is probably why flatworms are flat – all their cells are
a short distance from as source of oxygen and food.

Other kinds of flatworms are parasitic; you may have heard of
liver flukes, tape worms, or schistosomes, all of which are parasitic flatworms.
These flatworms live in the digestive tract or circulatory system of their host
animal, places where they are immersed in fluids containing food that can be
directly absorbed.
 

The Hammerhead planaria is a free-living, terrestrial predator of
earthworms. There are many species that are found all over the world. The
commonest species in the USA was probably accidentally introduced via the soil
in pots containing plants. They are commonly seen in and around greenhouses. On
a ramble a few years ago we found one attacking an earthworm on the sidewalk in
the Shade Garden.

The Hammerhead produces a very sticky adhesive secretion. If you
pick it up, it will stick to your fingers and be very difficult to remove. This
enables the Hammerhead to hold tight to its prey, an earthworm.

One more thing – the Hammerhead is the only terrestrial
invertebrate known to posses tetrodotoxin, a nasty neural poison. By attacking
the nervous system tetrodotoxin causes paralysis. That makes it useful in
subduing earthworms. The only other terrestrial organisms known to produce
tetrodotoxin are some salamanders and tropical frogs (the poison dart frogs.)”

Fork-tailed Bush Katydid

Back in the Heritage Garden, Heather found a beautiful Fork-tailed Bush Katydid on a Blanket Flower. This tiny katydid
will eventually grow up into one of the large green katydids that we all have
seen. Katydids are similar to grasshoppers, but they are easily distinguished
by their legs. A katydid’s legs go upwards, and a grasshoppers hind legs point
backwards when folded. Katydid nymphs are easy to recognize as well, with the
characteristic black-and-white striped antenna. Grasshoppers do not
support these humongously long antenna, only katydids!

Obscure Bird Grasshopper resting in a Pineapple
Salvia

Heather found a clutch of Spined Soldier Bug
eggs on a leaf, no more than ten feet from where she spotted another clutch on
a Ramble four or five weeks ago.
Spined Soldier Bugs are a type of stinkbug, and while most humans see stink bugs as of
little benefit, they actually prey on a lot of agricultural pest insects
including caterpillars and beetles.

Spined Soldier Bug
eggs
Job’s Tears are planted in one of the beds near
the gazebo.

Job’s
Tears’ dangling flower cluster with swollen stem “pseudocarp”

The yellow structures are stamens; the brown structures are styles/stigmas


Job’s Tears is an odd-looking grass with wide, clasping leaves and bulbous swellings at the base of the seed head. It is native to Southeast
Asia and cultivated there at high elevations where other grain crops do not
grow well. The stem at the base
of the flower cluster is swollen into a hard, round ball called a pseuodocarp
(“fake fruit”). Some varieties of Job’s Tears have hard pseudocarps that are used
to make beads; other varieties have soft pseudocarps that are
harvested and sold as Chinese pearl barley.

No August ramble report is complete without a photo of Eastern Tiger Swallowtail
butterflies. As is often the case at the Garden, this individual was nectaring
on Mexican Sunflower.
Eastern Tiger Swallowtails are the state butterfly of Georgia.

 

SUMMARY
OF OBSERVED SPECIES

Fan-shaped
Jelly Fungus     Dacryopinax
spathularia

Euphorbia      Euphorbia sp.
Common
Eastern Bumble Bee     Bombus
impatiens

Red
Salvia     Salvia sp.
Hardy
Water Canna     Thalia geniculata
Mosquito
Fern     Azollo caroliniana
Dusty
Miller     Eschscholzia californica
Iris     Iris sp.
Little
Bluestem grass     Schizachyrium
scoparium

Fiery
Skipper     Hylephila phyleus
Aaron’s
Rod     Thermopsis villosa
Groundsel
Tree     Baccharis halimifolia
Gall-forming
Midge   Neolasioptera lathami
Castor
Bean plant     Ricinus communis
Rose     Rosa sp.
Tea Cup
Elephant Ear   Colocasia esculenta
Bush
Clover Lespedeza thunbergii ‘Pink
Fountain’
Annual (Dog-day)
Cicada    Tibicen canicularis
Smooth
Sumac     Rhus glabra
Smooth
Sumac gall aphid     Melaphis rhois
Hammock
Spider Lily     Hymenocallis
occidentalis

Giant
Taro    Alocasia macrorrhizos ‘Shock
Treatment’
Hammerhead
Planarian, Shovel-headed Garden Worm     Bipalium
kewense

Carolina
Anole     Anolis carolinensis
Butterfly
Weed     Asclepias tuberosa
Oleander
Aphid     Aphis nerii
Molasses
Grass     Melinis minutiflora
Obscure
Bird Grasshopper     Schistocerca
obscura

Pineapple
Salvia   Salvia elegans
Fork-tailed
Bush Katydid     Scudderia furcata
Blanket
Flower     Gallardia aestivalis
Spined
Soldier Bug (eggs)     Podisus
maculiventris

Job’s
Tears
Coix lacryma-jobi
Eastern
Tiger Swallowtail     Papilio glaucus