typhonium

From: Tony Avent <tony at plantdel.com> on 1998.01.12 at 16:19:58(1823) Wilbert: Back in June, you described the plant that Kaichen was selling as Arisaema rhombiforme as Typhonium fieldii. Can you tell us more about the typhonium, especially potential hardiness as compared to the hardy T. giganteum. Thanks. Tony Avent +More Plant Delights Nursery 9241 Sauls Road Raleigh, NC 27603 USA ph 919 772-4794 fx 919 662-0370 email tony@plantdel.com http://www.plantdel.com USDA zone 7, 0F-100F "I Consider Every Plant Hardy Until I Have Killed It Myself...Three Times" - Avent

From: Wilbert Hetterscheid <hetter at vkc.nl> on 1998.01.13 at 14:15:44(1827) Dear Tony, It concerned Typhonium horsfieldii, which is mainly tropical. Certainly not hardy when frosts are concerned. You may experiment with temperate circumstances, which I have found are accepted by many Typhoniums. It is a species with a high light-need or it gets leggy easily. Always be careful with too much direct sunlight. I have also found that it doesn't like to be kept dry OUT of the soil. Some clones have a tendency to stay green during "resting", meaning a few leaves linger on while there is no actual growth. Should not let such a plant dry out. The species is one of the most widespread in Asia and has many phenotypes, some very attractive. Cheers, Wilbert +More > ---------- > From: Tony Avent[SMTP:tony@plantdel.com] > Reply To: aroid-l@mobot.org > Sent: maandag 12 januari 1998 17:18 > To: hetter@vkc.nl > Subject: typhonium > > Wilbert: > > Back in June, you described the plant that Kaichen was selling > as > Arisaema rhombiforme as Typhonium fieldii. Can you tell us more about > the > typhonium, especially potential hardiness as compared to the hardy T. > giganteum. Thanks. > Tony Avent > Plant Delights Nursery > 9241 Sauls Road > Raleigh, NC 27603 > USA > ph 919 772-4794 > fx 919 662-0370 > email tony@plantdel.com > http://www.plantdel.com > USDA zone 7, 0F-100F > "I Consider Every Plant Hardy Until I Have Killed It Myself...Three > Times" - > Avent > >

From: Tony Avent <tony at plantdel.com> on 1998.10.19 at 15:24:25(2703) 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 +More 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

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

From: Tony Avent <tony at plantdel.com> on 1998.10.20 at 14:58:37(2707) Alistair: Thanks for your comments on the typhoniums. I am assuming by your comments that T. divaricatum and T. roxburgii look identical in flower from a couple of feet away and the only way to tell is to examine their sex organs when in flower. Is this correct? Tony Avent +More 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

From: alistair_hay_at_po-sydney at rbgsyd.gov.au on 1998.10.21 at 04:05:56(2708) T. divaricatum IS identical to T. roxburghii! Forget divaricatum, it is a synonym of roxburghii and there is no reason to use the name. T. blumei and T. roxburghii look fairly similar; the feature I gave is a reliable one for telling them apart, assuming that what you have is either one or the other. All best Alistair +More alistair@rbgsyd.gov.au ______________________________ Reply Separator _________________________________ Subject: Re: typhonium Author: at mailgate Date: 10/20/98 10:03 AM Alistair: Thanks for your comments on the typhoniums. I am assuming by your comments that T. divaricatum and T. roxburgii look identical in flower from a couple of feet away and the only way to tell is to examine their sex organs when in flower. Is this correct? 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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