Sycamore Leaves |
Bill carried a pruning saw and would
reach up into the tree to clip a sample twig to give us a close up of
the leaves and sometimes the fruiting bodies, as he showed us the
differences between the varieties of Maple or Oak. Sometimes these
differences were subtle and I gained an appreciation for close
examination of the world around me. For example, we may be acquainted
with the general shape of the maple leaf. After all, it is on the
Canadian flag. But that familiar red leaf is stylized, and Bill
showed us how some leaves are very deeply lobed (Silver Maple) and
others, like Norway Maple aren't. We are probably all familiar with
the winged seeds—as kids, we called them “helicopters” but they
are really called samaras—but how many of us have looked carefully
enough to notice that before they fall, they are joined in pairs? I
noticed later that that the shape of the pair can make a mustache if
you hold it under your nose. Sandy Mason, of the UI Extension showed
us one way to identify the variety of Maple through the seeds by
checking to see if the two seeds were joined at a roughly straight
line (a handlebar mustache) or more droopy, like Frank Zappa's
mustache.
We saw some trees that were
atypical—like the sassafras with only unlobed leaves. I'm used to
seeing sassafras saplings in the understory, or at the edge of the
woods. They are easy to recognize with their 3 varieties of leaves.
Bill called these shapes the Ghost, the Mitten, and the Football. But
here on the parkway, perhaps because it is not shaded by other,
taller trees, this poor little tree was bereft of ghosts and mittens.
Maybe because it is football season, it was showing its spirit. Bill
told us about the aromatic roots (the roots of root beer) and the
leaves used as filé
in gumbo. I pulled one of the leaves from a low hanging branch and
crumpled it to smell the fresh, lime scent.
As we walked, I began to contemplate
the oxymoron, “urban forest.” I'm used to thinking of a forest as
a wild and unkempt place. Or rather, the wildness is the keeper of
the balance in the forest. Here, though, the “forest” was
well-trimmed and even planned. Bill spoke about the merits of various
trees, how a particular cultivar might be problematic in certain
ways. It might be prone to a divided trunk, which could easily split
in high winds, or it might have drooping limbs that could interfere
with traffic on a busy street. It might be messy, dropping fruit that
causes a litter problem. It might be prone to escape cultivation,
pushing out native species in forests that are truly wild and don't
have such a watchful caretaker.
Look carefully at the leaves of Maple. |
We walked on through the morning,
enjoying the wind and the tree talk and the great variety in our
urban forest. At one house we saw a stately ginkgo, its fan shaped
leaves now a bright gold, fairly glittering in the wind. I stepped
back to notice how the leaves hang off the branches almost like
ferns. A few doors down one woman pointed to a stately golden tree in
a backyard, the crown above the roofline. “Is that Ginkgo?” she
asked. We all paused for a moment to admire the trees and the leaves,
to contemplate the wisdom of caring for our urban forest.
Walk in Beauty Cultivate Peace Blessed Be |
Ginkgo leaves hang off the branches like ferns. |
No comments:
Post a Comment