IAS Aroid Quasi Forum

About Aroid-L
 This is a continuously updated archive of the Aroid-L mailing list in a forum format - not an actual Forum. If you want to post, you will still need to register for the Aroid-L mailing list and send your postings by e-mail for moderation in the normal way.

  Re: Help i.d. these aroids
From: Eduardo <eggon at guarany.cpd.unb.br> on 1998.05.13 at 20:44:46(2114)
Dear Bob,

The pictures 132a, b and c of the ID center are SURELY Xanthosoma
violaceum Schott. It is one of the easiest Xanthosoma to recognize,
because of the purple petioles, somewhat triangular leaves and the basal
ribs usually denuded (at least for 0.5cm) in adult and pre-adult leaves.
Xanthosoma sagittifolium has green petioles (usually with a silvery
color, because of the wax, as Dewey mentioned)and green leaves (ovate in
outline), with the basal ribs never denuded for more than 0.5cm.
Usually, the basal lobes in X. sagittifolium are well developed and
frequently overlapping one each other. The basal lobes in X. violaceum
are less developed and do not overlap, because of the open sinus. The
inflorescences are quite different too, but they rarely flower.

I hope it helps,


Note: this is a very old post, so no reply function is available.