Accès membres

Mot de passe perdu? S'inscrire

16-09-2025 12:53

Philippe PELLICIER

Pézizes de 1-4 mm, brun grisâtres, sur les capsu

03-09-2025 12:44

Enrique Rubio Enrique Rubio

Hi to somebody.I would like to know your opinion o

15-09-2025 14:40

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.I'm searching for a digital copy of the seco

14-09-2025 22:16

Philippe PELLICIER

Apothécies petites jusquà 3 mm, oranges, avec de

13-09-2025 14:01

Thomas Flammer

dark brown apothecia, splitIKI-Spores biguttulate

10-09-2025 17:18

Blasco Rafael Blasco Rafael

Hola, encontre este estiercol de vaca estos apotec

13-09-2025 14:10

Wim de Groot

We found this hymenoscyphus on rubus fruticulosis.

11-09-2025 16:57

Jason Karakehian Jason Karakehian

Our revision of Marthamycetales (Leotiomycetes) is

10-09-2025 23:53

Marcel Heyligen Marcel Heyligen

Found on Robinia pseudoacasia together with Diapor

02-09-2025 11:34

Thomas Læssøe

https://svampe.databasen.org/observations/10527903

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Mollisia on wood
Zuzana Sochorová (Egertová), 07-09-2021 20:35
Zuzana Sochorová (Egertová)Mollisia
Hello,
please, how would you determine this Mollisia?
- on deciduous wood (Salix and Alnus are the most common trees in the locality)
- asci IKI bb, 8-spored, arising from croziers, 71-92 x 6-7.6 µm
- ascospores (7.3)8.4–10.1(10.9) × (2.3)2.5–2.9(3.1) µm, Q = (2.6)3–3.6 (4), Me = 9.1 × 2.7 µm; Qe = 3.3
- aseptate, OCI = 1-1.5
- KOH reaction negative
- subhymenium consisting of hyaline hyphae
- marginal cells about 15-20 µm long

In the key by Andreas Gminder, my first problem appears at the point 25. Cells of the ectal excipulum are not brown only at the base, but also not "up to the margin" - the most marginal cells are hyaline.
If chosing „brownish only at the base", the best fitting is M. benesuada.
If chosing „brownish up to the margin", I cannot decide again whether to choose „oil content 0(+)" or „oil content ca 2" (I would say my specimen has oil content between 1 and 1.5). If following OCl = 0, the best choice is M. cinerea. But the spores in my fungus definitely aren´t missing oil...
If jumping on „oil content 2", I cannot choose anything which would fit well.
Thanks, Zuzana

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Zuzana Sochorová (Egertová), 07-09-2021 20:36
Zuzana Sochorová (Egertová)
Re : Mollisia on wood
More photos
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Zuzana Sochorová (Egertová), 07-09-2021 20:38
Zuzana Sochorová (Egertová)
Re : Mollisia on wood
more photos
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Hans-Otto Baral, 07-09-2021 21:18
Hans-Otto Baral
Re : Mollisia on wood
Yes, I would also exclude M. cinerea. The excipulum is bright brown up to the mid flanks. M. benesuada is a species on bark ("alni-corticis"), I earlier misused the name for a common species complex on wood, namely M. oblonga (olivaceocinerea s. Gminder) and M. nodosa. The two differ in their anamorphs. I am sure this could be brought out with ITS.
Zuzana Sochorová (Egertová), 08-09-2021 13:46
Zuzana Sochorová (Egertová)
Re : Mollisia on wood
Hi Zotto,
thank you for your answer.
The excipulum had a green tinge after applying 5% KOH (the green colour is mentioned in the key in M. olivaceocinerea with NH4OH).
Best, Zuzana