Twenty four Ramblers were present for today's walk,
including David and Diona's three girls. It's always fun to have children on
our rambles and we appreciate their eager participation (and sharp eyesight).
Don Hunter's album of photos from today's ramble can be
found at this
link.
Upcoming events:
·
Dan Williams will offer his free tree id course,
beginning Tues., Oct. 7 at 5:00PM. at the Oconee Forest Park boardwalk parking
lot (same place as last year), and will continue through November. Dan has this
to say:
"Based on comments from folks like you, we have a new book for the
sessions. This book, called Tree Facts and Folklore has information on
tree identification, but it also tells you about the tree's ecology (like shade
tolerance, canopy preference, fire resistance, etc), the ways the tree has been
used by Indians, Pioneers and modern man, and includes interesting tree stories
and folklore from Americana and other countries."
Dan will have copies of the book available
for sale at the sessions.
***************************************************************************
· An exhibition of photography by Hugh and Carol Nourse, "Wild Flowers, Wild Places" will be on display in the Visitor Center of the State Botanical Garden of Georgia from October 12 thru November 23. Opening reception will be held in the Visitor Center, October 12, 2-4pm. The
Nourses have selected 33 Images drawn from over 20 years of
photographing native plants and their habitats, mostly from Georgia and
the southeastern U.S., with a few from the western U.S. and
Newfoundland.
If anyone would really like to bring some finger food to the
reception, just let Carol know.she has no idea how many people will show
up. So far she has lots of carrot cake in the freezer. (Send email to hughandcarol [at] att [dot] net)
****************************************************************************
Today's reading:
Bob Ambrose recited his new poem, Weeds Have Names; you can read the poem at this
link.
Today’s Route: From the parking lot, down the paved walkway
in the Shade Garden to the Dunson Native Flora Garden, then across the road and
up the White Trail spur to the power line ROW, where we went up the hill on the
ROW to the gated fence at the top of the hill.
From here, we followed the fence into the woods and passed thru the deer
gate on the white trail. Then we turned right and followed the same fence back
to the power line. (This detour is made necessary because the gate at the top
of the hill is locked.) We continued down the ROW access road and up the hill to
the White trail. From here, we took the
White Trail west into the woods and continued on it back to the top of the
hill, where we again accessed the ROW and returned back to the parking lot the
way we came.
Paved Path Through
Shade Garden:
We stopped by the American Witch Hazel to check on the
progress of its developing flower
buds. Witch Hazel is unusual in that it is a
late fall blooming plant, one of the last to begin flowering. On the other side
of the walkway are several Japanese Witch Hazels that also bloom in the late fall.
These are well in advance of the native in the size of their flower buds. We'll
continue to monitor the progress of both these plants throughout October and
November.
 | |
| Witch Hazel flower buds |
At this time of year the nut bearing trees begin to drop
their fruits, much to the pleasure of the local rodents. We frequently find
partially chewed fruits on the sidewalk and today was no exception. One of the
girls discovered the fruit of a Pignut Hickory with the husk chewed down to
expose the hickory nut inside.
Shade Garden:
At the bottom of the Shade Garden we passed the area where
we saw a large number of
red-flowered lilies on August 28. These are known by
many names, Surprise Lily, Hurricane Lily, Magic Lily, Red Spider Lily and
probably a few others. They surprise by sending up a flowering stalk without
leaves and topped by a mass of magnificent flowers. We also saw these flowering
here on September 5, 2013. But how does a plant not have leaves? Today we saw
the answer. After the flower dies back the plant sends up leaves to make the
food to store in the bulb for next year's flower. This native of China and
Japan has become naturalized in the southeast since its introduction the early
19th century.
 | |
| Hurrican lilies on 8/28/14 |
White Trail
Spur/Power Line ROW:
At the beginning of the White trail, at the edge of the
road, we saw a clump of large sedges. We left the identification at that. Someday I will learn how to identify sedges. But not this year.
The plants in flower today were mostly ones that we have
seen in recent weeks so you can consult earlier posts if you want to see photos
of them when they were at their peak. Today we found:
Yellow crownbeard, Dog fennel, Golden aster/camphorweed, Rabbit
tobacco, Coffee weed/Sicklepod, Bitterweed, Blue aster, Common mullein, Daisy
fleabane, White crownbeard, Dixie reindeer lichen, Pixie cup lichens, Creeping
lespedeza, Broomsedge bluestem, Purple top grass/Grease grass, Foxtail Bristle
grass.
 | |
| Dog Fennel |
The Dog fennel is in full bloom this week; each plant is
loaded with thousands of flowers. Unlike other species of Erigeron,
the flowers of Dog fennel are wind-pollinated, which is
why they are so inconspicuous -- why bother to produce fancy petals if you
don't need to attract bees? In fact, petals might just get in the way if you're
pollinated by the wind. Each flower produces a single tiny seed on a piece of
fluff that is born away on the wind, making it both wind-pollinated and wind
dispersed.
 | |
| Closeup of Dog Fennel flowers |
 | |
| Ella with Mullein |
Common mullein is a biennial, meaning the plant only lives
for two years. The first year is spent in a rosette of soft, furry gray leaves
that hug the ground. In the second year The rosette grows larger and then sends
up a flowering spike that is covered with yellow flowers. These flowers are
gone now, but the stalk that bears them is still much in evidence, covered with
fruits that contain seeds. The stalks can be quite tall, as seen in the photo
to the left.
 | |
| Broomsedge |
One of the grasses that is abundant in this part of the
power line ROW is hard to pick out against the background of the other green
plants. It is one of the most recognized native grasses, but usually only in
the fall and winter, when it has dried to a beautiful golden brown, tinged with
bronze. It is Broomsedge bluestem or just simply Broomsedge.
Today started out on the chilly side and that is not
conducive to seeing a lot of insect activity. If you want to find bugs
(insects) you
need sunny warm weather. But we did find a torpid Buckeye
butterfly hidden in the grass. It was so cold that could barely move, so it was
easy to pick it up and perch it on my finger. This butterfly had sustained
damage to the hind wings -- large pieces were missing. The Buckeye has large
pigmented circles on both its front and hind wings. These are called eyespots
because they resemble, well, eyes. Such patterns are common in butterflies and
are thought to have two possible functions. The first is to elicit a startle
reaction in a potential predator. If the wings suddenly open to reveal what
looks like the eyes of a larger animal the predator may be startled just long
enough to permit escape. The second idea is that the eyespots direct a
predators attack to a disposable part of the animal. Butterflies can still fly
when parts of their wings are removed, so if a predator attacks the eyespot it
gets a mouth full of dusty wing that breaks off and the butterfly flies away, a
little bedraggled, but still alive. Our Buckeye had big chunks of its hind
wings missing, as if a lizard or a bird had attacked it.
 | |
| Buckeye missing part of hind wings |
Whenever I see a Fire ant mound I like to open it up to see
if there are any reproductives present. Reproductives are winged males and
females that fly off and join other reproductives from other nests to mate.
This is the wrong time of year to find them, but I can't resist poking into an
ants nest. I did find one winged ant in one of the mounds, but that is going to
be one lonely insect if it leaves the nest.
By the way, Fire ants love to set up nests in warm, sunny
places with short grass. Sounds like a mowed lawn, doesn't it? If you have Fire
ants in your yard here is a way to get rid of them without using pesticides.
Fill a gallon bucket with water and add 1/2 cup or so of liquid dish washing
detergent. Pour the entire contents on the nest. Check back in a couple of days
to see if the nest is still active. If it is, repeat until no more ants are in
evidence. This won't harm your lawn like pouring boiling water on it will and
you won't be contaminating the environment with harmful pesticides.
As we neared the top of the hill some of us noticed two
White tailed deer in the woods to our right.
Power line ROW past landfill:
We detoured around the fence at the top of the hill and
continued on the power line ROW. Just down the hill on the east side of the ROW
is a fenced off area with a warning sign. It contains radioactive waste that
was dumped in the area years ago when regulations were lax or non-existent. Don
Hunter, who is a retired EPA employee, told us about the methods used to
isolate and monitor the contaminants in such places.
 | |
| Downy Lobelia |
We continued walking north on the power line ROW to locate
the special flower of the day. On the way we found Mountain mint,Yellow
crownbeard,Dog fennel, Daisy fleabane, Tiny daisy fleabane, Downy lobelia and,
finally, near the top of the hill where the White trail crosses, we found today's
prize: Blue Curls.
Blue Curls is a mint and, like most mints, it has opposite
leaves and a
square stem, but the flower has an unusual feature that gives the
plant its name. The stamens (the male structures that bear the pollen-producing
anthers at their ends) are exceptionally long. When the flower first opens
these stamens are curled up to form a semi-circle projecting in front of the
flower. They are blue in color, hence the plants common name: Blue Curls. As
the flower matures the stamens extend the anthers outward to a position that
can brush pollen onto any bee that visits.
 | |
| Blue Curls |
White Trail:
Taking the White trail back we started to examine the trees.
This part of the trail has a lot of saplings so they make it easy to see the
leaves. But, as we discovered, trees are like people: they change as they age.
The young saplings don't always look like the more mature tree, especially the
in the bark characteristics. This is particularly the case with young Hop
hornbeams. Their bark resemble that of young Black cherry trees. It is smooth
and has lenticels. As the tree matures it develops the "cat scratch"
bark texture, but when young it looks like the other hornbeam, American
hornbeam. So how can you tell the young saplings of these apart? Habitat is the
best clue. American hornbeam (AKA Musclewood) is usually found growing in moist
areas near streams and rivers. Hop hornbeam occurs in a broader range of
habitats ranging from moist to dry. This part of the White trail is pretty dry
so any hornbeam we encounter her is most likely to be a Hop hornbeam.
 | |
| Winged Elm with corky ridges ("wings") |
Another tree commonly encountered in the Gardens is Winged
elm, so named for the "wings" on the twigs and branches. These wings
are really corky ridges that grow out from the sides of some of the twigs and
branches of the tree. They would be diagnostic of Winged elm but for one
problem. Not every Winged elm has them and not every branch has them. And,
another problem: Sweetgum also has wings. Fortunately Sweetgum leaves are very
distinctive and easily told apart from those of Winged elm.
No one really knows if the wings have a function or what it
might be. Some features of living organisms don't seem to be either adaptive or
non-adaptive. They just are. Perhaps they are a by-product of a developmental process
and, as long as they don't decrease the plants fitness it doesn't matter if
they are there or not. If that is the case you might expect that such traits
would be highly variable, and such is the case with the wings on Winged elm.
I'm inclined to vote for the non-adaptive hypothesis, but I'd be happy to be
proven wrong.
 | |
| False Turkeytail |
We saw some fallen branches heavily covered with Turkeytail-like
mushrooms. By examining the lower surface we confirmed that they were False
Turkeytails. The lower surface is smooth in False Turkeytails but has pores in
true Turkeytails.
We noted that the Sourwood leaves have not yet begun to turn
color. They and Black Gum are usually the first to change.
Further along we found an Oak with "ski-trail"
bark and some thought it was a Northern Red Oak. We searched the ground and
found evidence that it was a Scarlet Oak. The leaves of the latter are more
deeply lobed than in the Northern Red Oak.
 | |
| Amanita mushroom |
One of the surprises on the trail home was an extremely
large Amanita mushroom. These are quite poisonous and should never be eaten.
The characteristic feature of Amanita mushrooms is the bulbous base, like an
egg, from which the mushroom emerges. They also usually have ring of tissue on
the stem, just below the cap. This specimen did not have the ring, but it is
not always present as it is delicate and often falls off with age.
Further along the trail we found a Triangulate orb weaver, a
Southern grape fern and a log with a crusty white slime mold.
Paved Path in Shade
Garden:
I almost didn't include this because it's not a native
species and it's
not in the natural areas of the Garden, but it was interesting
and I already mentioned the Hurricane lilies. Just below the parking lot there
is a small group of Toad lilies in bloom. When you look closer you'll notice
that the arrangement of the stamens and pistils is very similar to that of
Passion flower. Lilies are monocots and the Passion flower is a dicot, so these
two are only very distantly related. Another surprise!
 | |
| Toad lily stamens and pistil |
Unfortunately Donderos' was not available today due to the Romeo
and Juliet production at the Garden. Some ramblers met at Jittery Joes for
coffee and conversation.
SUMMARY OF OBSERVED SPECIES:
American witch hazel
|
Hamamelis virginiana
|
Pignut hickory
|
Carya glabra
|
Surprise lily
|
Lycoris radiata
|
Sedge, not identified
|
|
Yellow crownbeard
|
Verbesina occidentalis
|
Dog fennel
|
Eupatorium capillifolium
|
Golden aster/camphorweed
|
Heterotheca latifolia
|
Rabbit tobacco
|
Pseudognaphalium obtusifolium
|
Coffee weed/Sicklepod
|
Senna obtusifolia
|
Bitterweed
|
Helenium amarum
|
Blue aster
|
Aster spp.
|
Fire ants
|
Solenopsis spp.
|
Common mullein
|
Verbascum thapsus
|
Daisy fleabane
|
Erigeron annuus
|
White crownbeard
|
Verbesina virginica
|
White-tailed deer
|
Odocoileus virginianus
|
Dixie reindeer lichen
|
Cladina subtenuis
|
Pixie cup lichens
|
Cladonia spp.
|
Creeping lespedeza
|
Lespedeza repens
|
Buckeye butterfly
|
Junonia coenia
|
Broomsedge bluestem
|
Andropogon virginicus
|
Purple top grass/Grease grass
|
Tridens flavus
|
Foxtail Bristle grass
|
Setaria italica
|
Mountain mint
|
Pycnanthemum incanum
|
Tiny daisy fleabane
|
Erigeron sp.
|
Blue curls/Forked blue curls
|
Trichostema dichotomum
|
Downy lobelia
|
Lobelia puberula
|
Winged elm
|
Ulmus alata
|
False turkey tails
|
Stereum ostrea
|
Hop hornbeam
|
Ostrya virginiana
|
Sourwood
|
Oxydendrum arboretum
|
Scarlet oak
|
Quercus coccinea
|
Amanita mushroom
|
Amanita spp., tentative
|
Triangulate orb weaver
|
Verrucosa arenata
|
Crusty, white slime mold
|
Brefeldia sp?
|
Southern grape fern
|
Botrychium biternatum
|
Toad lilies
|
Tricyrtis spp.
|
