What is quarter terete??

[Baloney]

Hi all

Apologies in advance for the noob question, but since I picked up the orchid bug a few months ago, I've been trying to read up as much as I can on them. What puzzles me though is in relation to Vandas - I read that there are 3 main leaf forms:

- strap leaf
- terete leaf
- semi terete leaf

The first two are clear to me, but what in the world does semi terete look like?

Would any kind soul care to enlighten me by perhaps posting a semi terete leaf picture up here please? Many thanks in advance!