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Author Topic: Petrocosmea - information needed, please.  (Read 1404 times)

Maggi Young

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Petrocosmea - information needed, please.
« on: April 08, 2019, 11:52:06 AM »
I have  had this message from  Julian Shaw, a botanist working for  the Royal Horticultural Society.

"......I am trying to find out when Petrocosmea grandiflora first appeared in cultivation. Can you help please?

Why do I need to know this? Because I have just realised that all the cultivated plants labelled Petrocosmea grandiflora are a different species. And P. grandiflora is not in cultivation, except at a botanic garden in China. Consequently finding the origin of the plants in cultivation is an important step in solving this puzzle.  I had to carry out a similar investigation a few years ago with P. cryptica, which was circulating as P. rosettifolia at the time.
So any help anyone can give would be greatly appreciated.

Many thanks
Julian Shaw"

julianshaw@rhs.org.uk

I know that  various  forumists  grow  "P. grandiflora" and we  often see  it  on the  show  benches, so I do hope  you will get  in touch with  Julian to help in his  researches.
Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!


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arisaema

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Re: Petrocosmea - information needed, please.
« Reply #1 on: April 08, 2019, 02:42:31 PM »
This sounds like another Chen Yi introduction from sometime in the early 00's? She used to have a list of Gesneriads, I could probably dig them out from my email if needed - as well as the pictures.
Balcony gardener in Chengdu, Sichuan, USDA zone 9
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arisaema

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Re: Petrocosmea - information needed, please.
« Reply #2 on: April 08, 2019, 02:54:00 PM »
Here are the likely suspects, I couldn't find the lists, but they should be in the Alpine-L or Arisaema-L archives.
Balcony gardener in Chengdu, Sichuan, USDA zone 9
ChineseAlpines.com - Wild collected seeds and cultivated bulbs from China

Maggi Young

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Re: Petrocosmea - information needed, please.
« Reply #3 on: April 08, 2019, 03:22:12 PM »
I agree, Bobo,  that these  plants  most  likely arrived  via  Chen Yi.
Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!


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arisaema

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Re: Petrocosmea - information needed, please.
« Reply #4 on: April 08, 2019, 03:34:06 PM »
I had a look on Taobao, but while there was some Petrocosmea listed nothing looked like P. grandiflora of cult. Knowing her I would guess they either came from somewhere in S Yunnan (+N Burma), or from around Baise in Guangxi.
Balcony gardener in Chengdu, Sichuan, USDA zone 9
ChineseAlpines.com - Wild collected seeds and cultivated bulbs from China

Michael J Campbell

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Re: Petrocosmea - information needed, please.
« Reply #5 on: April 08, 2019, 09:05:06 PM »
I have this as petrocosmea grandiflora
« Last Edit: April 08, 2019, 09:13:53 PM by Michael J Campbell »

Maggi Young

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Re: Petrocosmea - information needed, please.
« Reply #6 on: April 10, 2019, 11:44:35 AM »
Just  heard  from Julian Shaw, who sends this  link to a  Chinese ( translated) article on the  confusion with the  mis-named  P. grandiflora in cultivation......

For the interest of your forum members there is a link to the Chinese centre for Gesneriad conservation with a few images of genuine P. grandiflora   http://gccc.gxib.cn/showNews-278.aspx

 A photo from that article  of the  "true"  P. grandiflora ...

640911-0
 
 Julian also says :

Since the last query was so successful, please could I try another one?

Does anyone know anything about the origin of Petrocosmea HT-2 and TT-27 Such as what the letters stand for, who introduced them and how long they have been around?

I think it would be useful to clear up these identities too if we can while we are at it."

I hope  forumists will again be  able to help!
Margaret Young in Aberdeen, North East Scotland Zone 7 -ish!


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arisaema

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Re: Petrocosmea - information needed, please.
« Reply #7 on: April 10, 2019, 01:10:52 PM »
Does anyone know anything about the origin of Petrocosmea HT-2 and TT-27 Such as what the letters stand for, who introduced them and how long they have been around?


TT is Tim Tuttle, according to http://www.gesneriads.info/genera/petrocosmea-sp-tt-27/ . The numbers (TT) 27 and 64 sound like they also might be Chen Yi's, I suggest contacting him to ask - or checking her old lists.
Balcony gardener in Chengdu, Sichuan, USDA zone 9
ChineseAlpines.com - Wild collected seeds and cultivated bulbs from China

arisaema

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Re: Petrocosmea - information needed, please.
« Reply #8 on: April 10, 2019, 01:24:01 PM »
Internet Archive saved a copy of her gesneriad lists here.
Balcony gardener in Chengdu, Sichuan, USDA zone 9
ChineseAlpines.com - Wild collected seeds and cultivated bulbs from China

 

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