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  Gonatopus angustus
From: "E.Vincent Morano" <ironious2 at yahoo.com> on 2011.06.20 at 21:14:15(22123)
I just bought what is claimed to be Gonatopus angustus from a seller on ebay. The tuber looks like G. rhizomatosus. Its a rhizome. What do Gonatopus angustus tubers look like?
He tells me via private message after Ive bought it that the rhizomes in the picture are G. rhizomatosus but the listing title is for Gonatopus angustus. And what do I
relieve? the middle Y shaped rhizome of G. rhizomatosus! Im hopping this is a mistake but something else he said in his message makes me feel like some kind of skulduggery is taking place here. He says that his plant was verified by Josef Bogner as being Gonatopus angustus.
Im hopping that there is some kind of mistake here but I sure smell fish! here is the closed ebay listing http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&_trksid=p4340.l2557&rt=nc&nma=true&item=250837286974&si=ypFerPbz%252BXEahRwNC6yDsarY7i4%253D&viewitem=&sspagename=STRK%3AMEWNX%3AIT

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From: "E.Vincent Morano" <ironious2 at yahoo.com> on 2011.06.21 at 02:56:50(22125)
The seller cleared things up. I apologize for jumping to conclusions.

--- On Mon, 6/20/11, E.Vincent Morano wrote:

From: E.Vincent Morano

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From: Ken Mosher <ken at spatulacity.com> on 2011.06.21 at 03:09:04(22127)
Gonatopus angustus has a rhizome and the photo of the leaf and the
rhizomes look similar to the plant I have. I don't have G.
rhizomatosus so I can't compare the two.

-Ken

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From: Ron Kaufmann <kaufmann at sandiego.edu> on 2011.06.21 at 03:48:53(22128)
Hi Erin,

Gonatopus rhizomatosus is a basionym (old name) for Gonatopus
angustus (accepted name). You can find this information on the
International Aroid Society web site at

http://www.aroid.org/genera/generapage.php?genus=gonatopus

Ron Kaufmann

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From: Susan B <honeybunny442 at yahoo.com> on 2011.06.21 at 04:18:36(22129)
LOL Julius is spinning in his grave!

Better to ask a question than accuse a Hannon of misdeeds on this list!

Aroid.org says G rhizomatosus = G angustus

From: E.Vincent Morano

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From: "E.Vincent Morano" <ironious2 at yahoo.com> on 2011.06.21 at 06:16:25(22133)
Would you mind sharing growing information? So would I just place the rhizome half way in the soil and just keep it moist? What size pot should I use?

--- On Mon, 6/20/11, Ken Mosher wrote:

From: Ken Mosher

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From: "E.Vincent Morano" <ironious2 at yahoo.com> on 2011.06.21 at 15:34:23(22134)
My mistake, Im an idiot I know.

--- On Mon, 6/20/11, Susan B wrote:

From: Susan B

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From: "Wilbert Hetterscheid" <hetter at xs4all.nl> on 2011.06.22 at 04:56:08(22136)
Ron's answer is correct: A. rhizomatosus is a synonym of A. angustus, a very variable species in both leaf shape and tuber shape. The leaflets go from almost linear to almost fully rounded, the "tuber" may indeed be very short and tuberous or more elongate as a rhizome but even then rather thick.

Cheers,

WIlbert

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From: "E.Vincent Morano" <ironious2 at yahoo.com> on 2011.08.08 at 22:03:24(22180)
I bought a

Gonatopus angustus earlier this year and its been dormant this whole time. Im wondering if anyone has any cultivation info? What should I do with this plant when the heather turns cold? How long will it grow before going dormant again? Basically everything I need to know about it. Thank you

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From: Ken Mosher <ken at spatulacity.com> on 2011.08.16 at 15:11:39(22182)
Hi E.,

I had heard that Gonatopus angustus don't have a well-defined dormancy and can stay in leaf year-round. My own personal experience with growing them in the northeast US is that they tend to go dormant sometime during the winter and break dormancy in earlyish spring.

It seems to be a sturdy plant and I've never lost one during dormancy to rot or dessication. I have always kept them in their pots just like I do my Gon. boivinii.

My boivinii also seem to have a poorly defined dormancy. One of them has been in leaf for well over a year while another one was dormant all winter (the solid green form). When I say "in leaf" with boivinii I mean an unbroken series of leaves and inflorescences.

-Ken

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