Kathy Schmid wrote:
>Today my lecture on arrangement of cork cambia (phellogen if you prefer) vs=
.
>appearance
>of bark prompted another of those "I don't know" questions from the class.
>>Does anyone know of any selection pressures that would favor smooth vs. the
>various other textures of bark?=20
>>Kathy Schmid
>schmid at butler.edu=20
I don't know of any adaptations shown by bark. Variation in bark character=
is one of god's gifts to botanists.
Eucalyptus trees show great variation within a locality: gums, boxes,=
stringybarks, peppermints and iron-barks can all grow close together,=
though they are different species of course. Conversely, one type of bark=
can be found in very different environments - again on different species.
Cheers
Bob Vickery
bob at acsusun.acsu.unsw.edu.auvickery at mpx.com.au