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08-11-2025 00:29

Francois Guay Francois Guay

I found this species in Quebec, Canada, on herbace

06-11-2025 16:50

Rot Bojan

Hello! Yesterday I found a fungus on or near a nee

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

05-11-2025 11:33

Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

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Mollisia potentillae-erectae Svrèek (1988) - index 20060606-006-PERZ
Perz Piotr, 09-06-2006 09:42
Hi everybody

I found this Asco on prev.years stem of Potentilla-erecta.

Ectal excipulum build of brown t.globulosa, at base sometimes strongly cylindrical. Subiculum negative but some syphae are presents, 1,5um thick, light brown.
Hairs hyaline/light brown/brown, septate. Marginal hyalime, thin long cells, 1-2 septate.
Asci and spores are visible on my quick-drawning. I can not found paraphyses, cause my collection is infected by konidial parasite.

I think it can be Mollisia potentillae-erectae Svrèek (1988), but on Potentilla spec. can be found also Pyrenopeziza coloradensis and Pyrenopeziza potentillae - i have not describtion of this species.

  • message #850
Perz Piotr, 09-06-2006 09:42
Re:Mollisia potentillae-erectae Svrèek (1988) - index 20060606-006-PERZ
mecro

  • message #851
Perz Piotr, 09-06-2006 09:42
Re:Mollisia potentillae-erectae Svrèek (1988) - index 20060606-006-PERZ
section

  • message #852
Perz Piotr, 09-06-2006 09:43
Re:Mollisia potentillae-erectae Svrèek (1988) - index 20060606-006-PERZ
hairs

  • message #853
Perz Piotr, 09-06-2006 09:43
Re:Mollisia potentillae-erectae Svrèek (1988) - index 20060606-006-PERZ
parasites in hymenium

  • message #854
Perz Piotr, 09-06-2006 09:44
Re:Mollisia potentillae-erectae Svrèek (1988) - index 20060606-006-PERZ
quick drawnings

  • message #855
Perz Piotr, 09-06-2006 09:44
Re:Mollisia potentillae-erectae Svrèek (1988) - index 20060606-006-PERZ
Svrcek diagnose

  • message #856
Perz Piotr, 09-06-2006 09:44
Re:Mollisia potentillae-erectae Svrèek (1988) - index 20060606-006-PERZ
Svrcek drawning

  • message #857
Perz Piotr, 09-06-2006 09:49
Re:Mollisia potentillae-erectae Svrèek (1988) - index 20060606-006-PERZ
No KOH reaction observed, only ectal excipulum changing colour from brown to +/- dark grey.

This spec looks like Pyrenopeziza, but who seens Svrcek collecrion ?? Andreas writes in his key, that M.potentillae-erectae propably is Pyrenopeziza.

Best wishes
Pimpek