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21-10-2021 13:57

Miguel Ãngel Ribes Miguel Ángel Ribes

Buenos díasMe han pasado esta Scutellinia recogid

21-10-2021 15:44

François Bartholomeeusen

Dear forum members,On a rotten piece of wood I fou

21-10-2021 13:26

Chris Yeates Chris Yeates

Bonjour tous While processing images of this deli

21-10-2021 21:09

Enrique Rubio Enrique Rubio

I would be grateful for an opinion on this Orbilia

20-10-2021 08:29

Mirek Gryc

Hello all.I would ask for help in identifying this

21-10-2021 20:14

Ronald Morsink

These i found on the side of a dry creek in the Ne

20-10-2021 21:37

Garcia Susana

Hola, He recogido este ascomyceto que crece de m

10-10-2021 17:35

Marek Capoun Marek Capoun

And one more question from me for today.It was the

18-10-2021 23:10

Jorge Hernanz

Hemos encontrado éste Geoglossum en hábitat alpi

18-10-2021 18:59

Thorben Hülsewig

Hi there,3 days ago I found this ascomycet on leav

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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