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  RE: Missing Raphides
From: Ted.Held at hstna.com on 2001.07.23 at 18:11:44(7093)
I would guess that he would have had to dry his sample before running any
electron microscope picture. I just thought that seeing raphides under any
type of microscope would be a simple matter. Now, my sample came from a
stem. Maybe they only exist in leaf tissue? From the descriptions, it would
seem like they must surely have hard skins or casings if not mineralized
shells. If the outer parts are soft and perishable, would they not be
useless at causing lacerations and penetrations? And the size should be big
enough to see with a simple hand lens. I would expect them to be rather
numerous and easy to get from a radical stem cutting.

Maybe raphides are not characteristic of all dumbcanes. Maybe not all
dumbcanes are hazardous to gardeners or small children?

I had hoped that raphides would have hard, perhaps complex surface
structures, akin to diatoms. An electron microscope picture might be quite
beautiful. Maybe different species would have different types of raphides
and that raphide morphology might be useful for species determinations.
Just some thoughts. I am only an amateur here.

Is there an easy way to get copies of back articles in Aroideana as Julius
Boos helpfully suggested?

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