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21-12-2025 12:34

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

21-12-2025 09:32

Josep Torres Josep Torres

Hello.A tiny ascomycete found embedded in wood in

22-12-2025 00:47

Patrice TANCHAUD

Bonsoir, récolte à proximité du milieu dunaire

21-12-2025 21:32

Pol Debaenst

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

21-12-2025 21:40

Isabelle Charissou

Bonjour, j'aimerais connaitre les références de

21-12-2025 21:31

Pol Debaenst

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

21-12-2025 21:31

Pol Debaenst

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

20-12-2025 23:08

Patrice TANCHAUD

Bonsoir, récolte sur sol sablonneux dans l'arriÃ

21-12-2025 01:54

David Chapados David Chapados

Hi,Would it be possible to find the species with t

20-12-2025 15:47

Mirek Gryc

Hi.These grew on pine wood that was heavily covere

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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