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12-01-2026 22:02

Ethan Crenson

Hello all, I am hoping someone will have some ins

11-01-2026 20:35

Josep Torres Josep Torres

Hello.A very tiny pyrenomycete sprouting sparsely

12-01-2026 05:24

Danny Newman Danny Newman

Cyathicula coronata on Urtica dioicaCataloochee Di

15-12-2025 11:49

Danny Newman Danny Newman

ITS sequences from the following two collections B

09-01-2026 17:41

Arnold Büschlen

Hallo, F. dilatata wird von vielen Bryoparasiten

10-01-2026 20:00

Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

07-01-2026 22:22

Danny Newman Danny Newman

Tatraea sp. on indet. hardwood The Swag, Great Sm

10-01-2026 01:18

Danny Newman Danny Newman

cf. Neovaginatispora fuckelii on indet. shrub Pre

07-01-2026 10:24

Danny Newman Danny Newman

Pezicula sp. on indet. hardwood Appalachian Highl

09-01-2026 10:08

Blasco Rafael Blasco Rafael

Hola, en el mismo habitat que la anteriorRetamaDia

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Valsa? on Ribes
Marja Pennanen, 25-02-2015 20:26
Hi again,

on the same twig of Ribes nigrum with propably Didymella grew some Valsalike pyrenos.
There were groups of black penetrating papillas on the surface, group width about 0,5 mm.
The spores were hyaline, allantoid about 7-9x2.
Asci were thin walled about 20-28x5.
Valsa frangulae is close, but that has not been found in the neighbourhood and that makes me very unsure of my determination.

Other opinions? Marja
  • message #34132
  • message #34132