A question about elaiosomes

David Ehrlich idavide@sbcglobal.net
Tue, 22 May 2007 09:02:37 PDT
Some Allium neapolitanum have volunteered themselves in the backyard.  They are quite pretty, and I am happy to let them flourish.  Yesterday I collected and cleaned their seed, and noticed that each wrikly black body had a fleshy attachment.  That started me thinking: I have seen informed people write elaisome and elaiosome.  Why the two spellings, and is one preferred?  Also, what is the technical difference between an elaiosome and an aril?  I know that elaiosome means 'oily body' and is usually an oily or fatty body attached to a seed, and that an aril is usually fleshy, but it need not be so, I mean, the arils of pomegranates are practically pure juice.

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