Discomycete from Spirea branches

12-07-2011 19:30

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Discomycete from Spirea branches

Alex Akulov, 12-07-2011 19:30

Good day

I try to make microphotos for some Discomycetes samples, which looks interesting for me. May be you have some ideas about them.

Alex

Hans-Otto Baral, 12-07-2011 20:19

Re : Discomycete from Spirea branches

Thoug I do not know the species very well, I think this could be Godronia spiraeae

Zotto

Alex Akulov, 12-07-2011 21:21

Re : Discomycete from Spirea branches

Dear Zotto

Thank you!

According Seaver description spores of Godronia spiraeae are 25-35 x 3-4, but in my sample - up to 70 x 1,1. Therefore, I think it is something another.

Alex

Alex Akulov, 12-07-2011 21:34

Re : Discomycete from Spirea branches

Zotto, do you familiar with the article:
Growes J.W. The genus Godronia // Canadian Journal of Botany, 1965, 43:(10) 1195-1276? I have not access to this article. Possible there are more information about Godronia spiraeae there.

Alex

Guy Garcia, 12-07-2011 22:05

Re : Discomycete from Spirea branches

avec de grandes spores voir peut-être Godronia cassandrae f. spiraeicola (Henn.) Groves

Alex Akulov, 12-07-2011 22:24

Re : Discomycete from Spirea branches

Thank you, Guy.

I can not to verify your idea , because I have not Groves original article from Canadian Journal of Botany:-( But according Mycobank, basionim of Godronia cassandrae f. spiraeicola (Henn.) Groves is Cenangella spiraeicola Henn. In the original description of Cenangella spiraeicola in Hennings paper spores are even smaller - 10-13 x 1,5-2.

May be you have another information?

Alex

Stip Helleman, 13-07-2011 08:27

Re : Discomycete from Spirea branches

Hi Alex,
this sporesize fits good for the imperfect, Groves gives no indication for the sporesize of this forma so i assume it will be the same as cassandrae only differing in substrate.
i will send photos.
cheers Stip

Alex Akulov, 13-07-2011 09:37

Re : Discomycete from Spirea branches

Thank you very much for advise and sent Groves article!
My specimens really looking like Godronia cassandrae f. spiraeicola (Henn.) Groves. But there are some confusions because visual similarity of macroconidia and ascospores.

Alex

Hans-Otto Baral, 13-07-2011 11:08

Re : Discomycete from Spirea branches

Yes, that sounds better. But the spore size of G. cassandrae differs with 40-85 x 1.5-3.5 µm (Groves 1965) from yours in the width. How sure are you with that?

For spiraeae Groves says 20-45 x 2.5-4 µm, which is also much wider than you say.

Zotto

Alex Akulov, 13-07-2011 12:19

Re : Discomycete from Spirea branches

In my sample most of asci are immature. I've been doing a lot of preparates in order to see at least one spore. And even those individual spores that I could find were not formed. Perhaps that is why their size does not quite equal to the description of Groves.
I plan to be in the same locations in the Carpathian mountains in 2 weeks and try to find a more mature specimens.

Alex

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