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27-03-2024 22:53

Charles Aron Charles Aron

Hi All,Recently I came across these minute, setose

26-03-2024 17:14

Juuso Äikäs

These little black ascos were growing on a dead, d

25-03-2024 13:41

B Shelbourne B Shelbourne

• Hyaloscyphaceae (no VBs), Hyaloscypha: Macro a

25-03-2024 21:27

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, March 2024

26-03-2024 14:37

DAVID MARCOS DAVID MARCOS

Spores (telles qu'elles apparaissent à l'intérie

24-03-2024 08:27

Thierry Blondelle Thierry Blondelle

HiOn Hedera helix fallen branchEcological habitat:

26-03-2024 11:06

michel bertrand

Bonjour, Malgré de nombreuses recherches, je n'a

25-03-2024 14:08

Ursula Kozik

Bonjour et bonne journée, On m'a envoyé une tro

25-03-2024 03:56

B Shelbourne B Shelbourne

• Scuttelinia: Macro and habitat.• S. scutella

25-03-2024 20:21

DAVID MARCOS DAVID MARCOS

Bonjour, je m'appelle David et je débute dans l'i

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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