Scottish Rock Garden Club Forum

Plant Identification => Plant Identification Questions and Answers => Topic started by: Lori S. on June 11, 2011, 05:35:36 PM

Title: Didymophysa vesicaria??
Post by: Lori S. on June 11, 2011, 05:35:36 PM: Hi, could you help me with an ID please?
I grew this plant from Holubec's seed described as follows: Didymophysa vesicaria - "China: Beima Shan, Yunnan, 4800m, limestone scree, small caespitose plant, 8cm high, white to pink flowers in terminal inflorescence, rounded inflated siliques, 15mm wide; 2008 seed."

The plant has been absolutely delightful and extremely long-blooming, but I have not been able to find a reference to that name, and am curious if it's correct.
Thanks.
Lori
Title: Re: Didymophysa vesicaria??
Post by: Maggi Young on June 11, 2011, 06:49:46 PM: Lori, this has been listed in the AGS seedlist, so perhaps Diane Clement will be able to shed some light on it?
It's not one I know but it's cute!
Title: Re: Didymophysa vesicaria??
Post by: Maggi Young on June 11, 2011, 06:57:38 PM: How's your Latin? http://bibdigital.rjb.csic.es/Imagenes/P0044_S2_17/P0044_S2_17_0179.pdf

This for relationships... http://www.biologie.uni-osnabrueck.de/bogos/wir_ueber_uns/friesen/publications/PSE%202009%20ITS%20Brassicaceae%20Asian.pdf
Title: Re: Didymophysa vesicaria??
Post by: Lori S. on June 11, 2011, 07:33:16 PM: Quote from: Maggi Young on June 11, 2011, 06:57:38 PM
How's your Latin?
Not so good as I would like. ;)
Thank you for the references. It seems its (the genus, that is) classification is in flux!
The Plant List refers only to D. aucheri and D. fedtschenkoana.
Info on the former seems to suggest it's a plant of Turkey, rather than of China (assuming the entire range is shown):
http://ww2.bgbm.org/EuroPlusMed/PTaxonDetail.asp?NameId=57003&PTRefFk=7200000
http://euromed.luomus.fi/euromed_map.php?taxon=295863&size=medium

eFlora brings up only this one,
Didymophysa fedtschenkoana:
http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=250063615
I guess I'll have to get out the hand lens and see if it matches.

Edit: Well, I don't think it's D. fedtschenkoana if its flowers are supposed to be only 3mm across! The plant in question is quite showy.
Title: Re: Didymophysa vesicaria??
Post by: Diane Clement on June 11, 2011, 08:57:02 PM: Quote from: Maggi Young on June 11, 2011, 06:49:46 PM
perhaps Diane Clement will be able to shed some light on it?

and perhaps she will be utterly useless on the matter ::) On my database, my name reference is "Holubec" which was the source of the seed on the AGS 2007/08 list. I did wonder if it a synonym but any likely candidates are neither compact nor white flowers, as Lori's. Coluteocarpus/Alyssum vesicaria seemed a likely synonym but it's from Turkey, not China. Flora of China doesn't list this genus at all.
Title: Re: Didymophysa vesicaria??
Post by: Lesley Cox on June 12, 2011, 12:26:30 AM: It is certainly very cute as MAggi says and is obviously happy with you Lori. :)
Title: Re: Didymophysa vesicaria??
Post by: arisaema on June 12, 2011, 09:00:28 AM: Is this the same plant? http://www.jansalpines.com/gallery/main.php?g2_itemId=14716
Title: Re: Didymophysa vesicaria??
Post by: Lori S. on June 12, 2011, 04:14:08 PM: It does look like it! I'll have to hunt down more pictures, and a description if possible of Braya linearis, to check it out further.
Thanks to everyone for pondering it and especially to Arisaema!