T. divaricatum is a synonym of T. roxburghii, not T. blumei. However,
the name T. divaricatum has also been extensively misapplied to plants
of T. blumei.
T. roxburghii and T. blumei can be told apart by the form of the
neuter organs above the female zone of the spadix: claw-like and
downward-pointing in T. roxburghii and thread-like and curly in T.
T. giraldii and T. giganteum var. giraldii have been treated as synonyms of T.
giganteum in the last revision of this genus (Sriboonma et al., J. Fac. Sci.
Univ. Tokyo Sect. III, 15: 255-313 (1994)).
______________________________ Reply Separator _________________________________
Author: <email@example.com> at mailgate
Date: 10/19/98 10:28 AM
Several years ago, I got two bulbs from Jim Waddick, Typhonium
and T. giganteum. Both have flowered regularly, and upon further research,
the RHS lists T. blumei as a synonym. Also, the Japanese picture aroid book
that many of us purchased has a photo of T. blumei, which is the same plant.
Jim tells me that he originally identified it from a photo in
Iconographia. It looks like it's pretty reliably hardy here in zone 7
As for T. giganteum, Jim tells me that several folks have instead called
it T. giraldii. RHS uses T. giganteum v. giraldii. This one has been
reliable in zone 7 also, and I think Jim also indicated it was reliable in
Any help to clear these taxonomic issues would be most
appreciated....Wilbert, et al.
Plant Delights Nursery @
Juniper Level Botanic Garden
9241 Sauls Road
Raleigh, NC 27603 USA
Minnimum Winter Temps 0-5 F
Maximum Summer Temps 95-100F
USDA Hardiness Zone 7b
phone 919 772-4794
fax 919 662-0370
"I consider every plant hardy until I have killed it myself...at least
three times" - Avent
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