[Arisaema-l] ID problem: fargesii or franchetianum

[Charles Hunter]

The plant in the attached photos was Chen Yi number A-14, identified as
Arisaema fargesii, but we know that Chen Yi IDs are almost worthless.
Nevertheless, that is how I tagged the plant, which put out a spectacular
bloom this year. 

 

Reading my Gusman book, it says under fargesii (p. 252) : "Close to A.
franchetianum, from which it differs by only a few characters, A. fargesii
could even be considered a variety of the former."

 

The huge central leaflet (see first picture) would lean towards fargesii.
However, the extreme curvature of the spathe limb beyond a full circle is
typical of the variety of A. franchetianum known as purpureogaleatum (see
page 255 of the book). But the last photo shows the recurving of the
mouth-margins (like the fargesii description). Finally, the end of the
spathe tip (see 2d photo) seems to me as intermediate between the long
thread of the franchetianum and the narrow shorter extension of fargesii.

 

Any of you Arisaema experts got a good idea? Or maybe this plant is evidence
that there is just one species. 

 

Charles Hunter

Smyrna, Georgia z7 USA

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