leaf forms: orthodox or dragon-fly

Toronto, ON(Zone 5b)

Still get confused between the two. I know for one vine leaf forms can be variant, but I don't know how to tell between normal and dragon-fly leaves. Is the picture below a normal leaf form or a dragon-fly leaf form? and it's green in colour right? not yellow-green? right?

Eliz

Thumbnail by evr

I noticed that researchers compared colours of their flowers with a standardized colour chart...is this still typically done, and if so what colour standard is used for the reference?

Toronto, ON(Zone 5b)

I'm not sure if they're typically done, but this site: http://74.125.93.104/translate_c?hl=en&sl=auto&tl=en&u=http://mg.biology.kyushu-u.ac.jp/mg-files/flowercolor/flower-color.html&usg=ALkJrhhEnz3dQKXV_M-p2MiU9qDzGRhR7g also compares leaf colour to that of bloom colour (Scroll down to "mutation in the dark series").

Imai used the "Ridgway Color Chart" but I do not know if anybody still uses them.

Link about Ridgway and color concordance: http://www.bio.utk.edu/mycology/Color/Color-index.htm

PS: I grew a couple of seeds that carry for the yellow leaves hehehe. Now I see the difference -_-. Still trying to grasp the difference between leaf forms however

Eliz

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