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21-06-2025 22:27

David Chapados David Chapados

Hi,Is this a Calycina? C. herbarum?Growing on an h

20-06-2025 08:33

Josep Torres Josep Torres

Hello.Small, blackish, mucronated surface grains s

11-06-2025 16:26

Jason Karakehian Jason Karakehian

Hi everyone, I am looking for the following protol

18-06-2025 19:24

Bernard Declercq Bernard Declercq

Good evening,On Oenanthe aquatica we collected  a

17-06-2025 14:23

Josep Torres Josep Torres

Hello.A probable Hyaloscypha from last June 1st, s

18-06-2025 16:24

Andgelo Mombert Andgelo Mombert

Bonjour,Un minuscule stade imparfait, qui pousse s

13-06-2025 16:34

Andgelo Mombert Andgelo Mombert

Bonjour,Un petit discomycète qui me résiste. Il

17-06-2025 12:10

Castillo Joseba Castillo Joseba

Del pasado dia 4  en bosque de hayas, en tierraA

12-03-2025 17:54

Karl Soler Kinnerbäck

Hi all!Do you agree with Scutellinia hyperborea? P

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White discs on Potentilla
Marja Pennanen, 04-08-2013 11:36
Hello forum,

remnants of Potentilla palustris leaves carried some interesting whitish discos.
I forgot to measure, but these were tiny, maybe 0,1-0,3 mm wide.
Spores are about 12-16x2,5-3 with few droplets.
Asci are about 45-60x7-8, IKI blue.
Cylindic paraphyses may contain Vb:s and are about 2-3 wide.
The marginal cells (may be called as hairs ;) ) are something like 20x2 and may contain Vb:s, too.

Some Calycellina species?

Marja
  • message #24671
  • message #24671
  • message #24671
Hans-Otto Baral, 04-08-2013 11:44
Hans-Otto Baral
Re : White discs on Potentilla
Looks lke Calycellina leucella.
Marja Pennanen, 04-08-2013 12:29
Re : White discs on Potentilla
Dear Zotto,

that was fast. Thank you!
Seems to be originally a Karsten species.

Marja