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26-04-2025 07:15

Dragiša Savic

Hello everyone,the lichen is Candelariella aurella

25-04-2025 22:48

Gustaf Fredell Gustaf Fredell

Hello,I hope everything is going well. I couple mo

18-04-2025 23:16

Robin Pétermann Robin Pétermann

Bonjour, Voici une probable Mollisia, genre que j

24-04-2025 21:35

Thorben Hülsewig

Hi there,last week i could found this asco on an S

25-04-2025 17:24

Stefan Blaser

Hi everybody, This collection was collected by J

25-04-2025 09:33

Josep Torres Josep Torres

Ascomata shaped like deformed black grains, measur

24-04-2025 21:53

Lothar Krieglsteiner Lothar Krieglsteiner

... 15.7.24 in the Alps. There were many asci with

23-04-2025 20:16

Miguel Ãngel Ribes Miguel Ángel Ribes

Good afternoon Looking for Octospores / Lamprospo

24-04-2025 15:03

Henri Koskinen

Hello, I collected this Lasiobolus 22.04. near Hel

23-04-2025 19:58

Francois Guay Francois Guay

I found this interesting Orbilia sp. one year ago

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Mollisia associated with algae on wood?
Edvin Johannesen, 04-04-2025 11:56
Edvin JohannesenThese 0.2-0,4 mm diam. flat to slightly convex, greeninsh grey apothecia were apparently growing on a thick layer of algae on dead wood (Picea abies). The rim (ectal excipulum) is distinctly darker (greenish pallisade in water, warm yellow in KOH).

Asci ca. 50 x 5 µm, IKI+ (blue without KOH pre-treatment, ring-shaped).  Spores ca. 6-8 x 3 µm, biseriate in upper half of asci, ellipsoid or somewhat asymmetrical ("navicular"), mostly with no oil droplets or a few small ones at each end (in water).  Paraphyses rather robust, guttulate and appearing "septate".

I am thinking Mollisia, but I have no updated literature/key to the species of Mollisia. Your opinion is appreciated.  Thanks!
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Edvin Johannesen, 04-04-2025 11:58
Edvin Johannesen
Re : Mollisia associated with algae on wood?
Microscopy:
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Hans-Otto Baral, 04-04-2025 21:53
Hans-Otto Baral
Re : Mollisia associated with algae on wood?
I suppose you have Durella suecica. I know it with dark and light colours.
Edvin Johannesen, 04-04-2025 22:56
Edvin Johannesen
Re : Mollisia associated with algae on wood?
That looks like a very good suggestion.  Thank you so much!