Re: Leaf Rotation

Carl Strohmenger (
Wed, 27 Jul 1994 13:55:58 -0400 (EDT)

On Wed, 27 Jul 1994, Barry Meyers-Rice wrote:

> >> Anyway the really interesting thing about the plant is that each petiole
> >> is twisted about 20--60 degrees
> >We see a similar taxonomic feature in Quercus laevis, Turkey Oak, in
> >central Florida
> >
> Interesting. I saw this species a lot in South Carolina, but did not notice
> the leaf plane. Here in the desert many plants use pulvini to orient their
> leaves w.r.t. the sun, either to minimize or maximize solar absorption. But
> these don't twist in the same direction as I mentioned with _D.chrysolepsis._
> Does _Q.laevis_ rotate all or most of its leaves in the same direction?
> Barry
Good question! I have to plead ignorant at this time, but will field
check some Q. laevis during an outing in the woods this weekend.

Carl Strohmenger