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24-12-2025 17:08

Propolis sp. on Picea abies
Hulda Caroline Holte

Hello, I have found this propoloid ascomycete on

24-12-2025 18:12

Orbilia
Ethan Crenson

Hello all, A friend found this Orbilia growing on

23-12-2025 11:27

blanc poilu
Louis DENY

bonjour forum,sur débris de bois de feuillu (acer

20-12-2025 10:49

Small resin asco?
Mirek Gryc

Hi. „I doubt it is possible to identify this ti

23-12-2025 08:27

Hymenoscyphus?
Josep Torres Josep Torres

Hello.Small, yellowish ascomata, with very short a

21-12-2025 09:32

Spherical Pyrenomycete
Josep Torres Josep Torres

Hello.A tiny ascomycete found embedded in wood in

21-12-2025 21:32

Anamorf on decaying leaves of Euonymus japonicus 'Microphyllus'
Pol Debaenst

Hello, Garden, Burgweg 19, Veurne, BelgiumOn 10/1

22-12-2025 23:38

Phylloscypha labessiana ?
Patrice TANCHAUD

Bonsoir, récolte sur un mur en pierre, apothéci

21-12-2025 12:34

Nectria ??
Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

22-12-2025 00:47

Phylloscypha boltonii
Patrice TANCHAUD

Bonsoir, récolte à proximité du milieu dunaire

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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