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07-09-2021 20:35

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

MollisiaHello,please, how would you determine this

06-09-2021 21:11

ruiz Jose antonio

Hola tengo esta Neottiella recolectada en La Rioja

07-09-2021 02:17

Ismael Wind

I know its not an asco but maybe someone knows. Of

04-09-2021 21:31

Lothar Krieglsteiner Lothar Krieglsteiner

... today on lying log of Fagus east of Spiegelau.

05-09-2021 20:27

Stefan Blaser

Hello everybody, I hope somebody can help me with

05-09-2021 20:01

Enrique Rubio Enrique Rubio

These minute subsessile pale pinkish apothecia up

05-09-2021 21:40

Wilhelm Guggisberg Wilhelm Guggisberg

Spegazzinia spp. spores (Hyphomycetes) from an ind

05-09-2021 19:06

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,do you agree here with Orbilia sarraziniana?

02-09-2021 23:11

Lothar Krieglsteiner Lothar Krieglsteiner

found today east of Spiegelau, on decaying logs an

02-09-2021 13:49

Edvin Johannesen Edvin Johannesen

These tiny apothecia (less than 1 mm) were found i

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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