Scottish Rock Garden Club Forum

Seedy Subjects! => Seed Exchange => Topic started by: David Sellars on September 02, 2008, 07:13:52 PM

Title: Petrocallis pyrenaica seed
Post by: David Sellars on September 02, 2008, 07:13:52 PM

I was delighted to get good germination from the SRGC seed exchange this year. Petrocallis pyrenaica (2832) performed very well but the seedlings do not look like Petrocallis pyrenaica.  The leaves are spoon-shaped and quite elongated. Did anyone else try this seed and identify the plant?

Title: Re: Petrocallis pyrenaica seed
Post by: Maggi Young on September 02, 2008, 07:23:25 PM

Hello, David and a very warm welcome to you from Aberdeen in Scotland!

I did not get that particular seed, but you are right to be dubious with those leaves as you describe.......sounds like you have an imposter there.... some sort of Thlaspi, perhaps? ???

Title: Re: Petrocallis pyrenaica seed
Post by: Lesley Cox on September 02, 2008, 09:21:27 PM

Are you able to post a picture?

Title: Re: Petrocallis pyrenaica seed
Post by: David Sellars on September 04, 2008, 04:41:31 AM

Lesley:

Here's a picture of one of the seedlings.  I mixed some oyster shell in the stone mulch and they seems to love the alkaline conditions as they are quite vigorous.  Thlaspi is definitely a possibility

Title: Re: Petrocallis pyrenaica seed
Post by: Lesley Cox on September 04, 2008, 06:30:56 AM

It's a long time since I grew the Petrocallis but I reckon it does look quite like it, especially if yours are under cover David and possibly a little etoliated or even if not.

Title: Re: Petrocallis pyrenaica seed
Post by: t00lie on September 04, 2008, 09:46:36 AM

Hello David

I've been onto your website Mountain flora a few times reading the various field trips--most impressive.
 
You are correct, the pic does not show Petrocallis pyrenaica--i have an established pot of that in my alpine house and it is totally different.

I think what you have germinated are Petrocoptis pyrenaica ,(which was numbered as 2833 in the seedlist)-- as the foliage appears very close to seedlings of that which pop up here in a trough regularly.

Cheers dave.

Title: Re: Petrocallis pyrenaica seed
Post by: Zdenek on September 04, 2008, 10:01:12 AM

David,
I don´t know what the plant is, sorry, but Petrocallis pyrenaica certainly not. Here is a picture of P. pyrenaica from my garden.
Zdenek Rehacek

Title: Re: Petrocallis pyrenaica seed
Post by: Lesley Cox on September 04, 2008, 11:07:47 AM

Thanks Dave, that was what I was thinking of, Petrocoptis, not Petrocallis. My apologies David. Actually I think I'm losing it altogether lately - but that's another story. I need a break away.

Title: Re: Petrocallis pyrenaica seed
Post by: David Sellars on September 04, 2008, 04:14:44 PM

Well I must say, I am really impressed by the collective wisdom of the SRGC. Brilliant sleuthing by Dave Toole. Who would have thought to look at the immediately adjacent taxon on the seed list that had a name that sounded so very similar to Petrocallis pyrenaica.

And as an added bonus we got a lovely picture of a very well-grown Petrocallis pyrenaica from Zedenek Rehacek.

Well done all and thanks for your help.

Title: Re: Petrocallis pyrenaica seed
Post by: Carlo on September 04, 2008, 08:23:49 PM

Zdenek,

...a beautiful plant. No one would complain about getting this one by mistake.

Title: Re: Petrocallis pyrenaica seed
Post by: fermi de Sousa on September 05, 2008, 12:50:13 AM

Quote from: Lesley Cox on September 04, 2008, 11:07:47 AM

Actually I think I'm losing it altogether lately - but that's another story. I need a break away.

Come to sunny Australia, Lesley!
cheers
fermi

Title: Re: Petrocallis pyrenaica seed
Post by: Lesley Cox on September 05, 2008, 01:31:17 AM

I may just do that Fermi! :D