[Aroid-l] Supervolute vernation. Finally a photo!

From: ExoticRainforest <Steve at exoticrainforest.com> on 2010.01.20 at 16:17:17(20502) I screwed up big time andinserted the wrong drawing. These are the correct drawings from Stern's showing the placement ofthe midrib. It appears the only difference in supervolute andconvolute is a leaf forming around another leaf but frankly I stilldon't have a completely satisfactory explanation. I try almost daily on my website to make subjects like this clearer foranyone interested in aroids that does not have or is not interested inearning a degree in botany. I am now to the point of completelyremoving the subject since I am no longer sure I fully understand it orcan help anyone else to understand. I don't believe any definition in print in any of the 5 botanicaldictionaries I now own make the distinction (if any) between convoluteand supervolute clear. At least in the dictionaries they appear to besynonymous and are one and the same. Steve HTML +More www.ExoticRainforest.com Marek Argent wrote: Steve, We cannot talk about vernation typesnot seeing the midrib as it is presented on the second drawing. It can as well be a half of a leafrolled involutely. The third drawing (convolute) iswhat I thought about (but I was afraid to say) - that the term "convolute" may referonly to at least two objects like one leaf inside another one ora spadix wrapped by a spathe. Anyway in my cord photos, the thirdtype, although probably not occuring in Araceae is possible, so it must have a nametoo. It's becoming complicated... Marek - These drawings are from William T. Stern's Botanical Latin,4th edition. --------------020702060404080602050805

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