Thank you Nhu, great work (and a lot of it!)
Just a note on your Dioscorea mexciana listing: They are not necessarily dormant in winter. I've had 2 of these for several years, one always grew in the winter, the other in the summer.
Unfortunately I can't compare them any more, I killed one off last year. The other is happily growing up a piece of string in the greenhouse- about 12 ft right now.
susan