A Twist
 

In article , Iris Cohen
writes
OK, you guys, wake up. I have a question. Any orchid grower will tell you that
hybrids between Sophronitis & other members of the cattleya alliance almost
always have a quarter to half twist in the leaves. My experience in sewing
leads me to speculate that they didn't fit the front of the leaf to the back
properly. Does anybody have a botanically more correct explanation?

Not that I think I can answer, but do you mean apical vs basal, or
dorsal vs ventral?
--
Stewart Robert Hinsley

A Twist
 

Stewart Robert Hinsley schreef
Not that I think I can answer, but do you mean apical vs basal, or
dorsal vs ventral?
--
Stewart Robert Hinsley

+ + +
Remember this is a botany newsgroup:
Animals (and people) have dorsal and ventral sides.
Plants don't. Leafs have adaxial and abaxial surfaces.
PvR

A Twist
 

I was afraid you were going to say that.
Iris,

+ + +
Actually I did not say that.
I just said that you said it ;-)
PvR

A Twist
 

"Iris Cohen" wrote in message
...
OK, you guys, wake up. I have a question. Any orchid grower will tell you
that
hybrids between Sophronitis & other members of the cattleya alliance
almost
always have a quarter to half twist in the leaves. My experience in sewing
leads me to speculate that they didn't fit the front of the leaf to the
back
properly. Does anybody have a botanically more correct explanation?
Iris,
Central NY, Zone 5a, Sunset Zone 40
"If we see light at the end of the tunnel, It's the light of the oncoming
train."
Robert Lowell (1917-1977)

I don't know either, but I've also seen it in my epiphronitis. Your
speculation seems quite logical but why is another question. And why
sophronitis? I haven't grown a pure sophronitis anything due to our hot
climate, but with our recently upgraded cooling system I plan to soon.
Please post if your searches turn up anything.