Re: typhonium

From: alistair_hay_at_po-sydney at rbgsyd.gov.au on 1998.10.19 at 23:54:56(2706) 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. blumei. 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)). Alistair Hay +More ______________________________ Reply Separator _________________________________ Subject: typhonium Author: at mailgate Date: 10/19/98 10:28 AM Aroiders: Several years ago, I got two bulbs from Jim Waddick, Typhonium divaricatum 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 zone 6. Any help to clear these taxonomic issues would be most appreciated....Wilbert, et al. Tony Avent 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 email tony@plantdel.com website http://www.plantdel.com 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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