Accès membres

Mot de passe perdu? S'inscrire

18-12-2025 18:07

Margot en Geert Vullings

These plumes were found on rotten wood.They strong

18-12-2025 17:23

Bruno Coué Bruno Coué

Bonjour,je serais heureux d'avoir votre avis sur c

17-12-2025 18:35

Michel Hairaud Michel Hairaud

Bonjour à tous/Hi to everyone I am passing along

21-11-2025 10:47

François Freléchoux François Freléchoux

Bonjour,Peut-être Mollisia palustris ?Trouvée su

15-12-2025 15:48

Danny Newman Danny Newman

Melanospora cf. lagenaria on old, rotting, fallen

15-12-2025 15:54

Johan Boonefaes Johan Boonefaes

Unknown anamorph found on the ground in coastal sa

15-12-2025 21:11

Hardware Tony Hardware Tony

Small clavate hairs, negative croziers and IKI bb

15-12-2025 07:09

Danny Newman Danny Newman

indet. Rutstroemiaceae sp. on unk. fallen leavesMc

15-12-2025 21:47

Pol Debaenst

Good evening, On 12/11/2025 I found ascomycetes w

15-12-2025 07:05

Danny Newman Danny Newman

Pseudosclerococcum golindoi (det: Zotto)near Cosb

« < 1 2 3 4 5 > »
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

  • message #70027
  • message #70027
  • message #70027
  • message #70027
  • message #70027
Zuzana Sochorová (Egertová), 07-09-2021 20:36
Zuzana Sochorová (Egertová)
Re : Mollisia on wood
More photos
  • message #70028
  • message #70028
  • message #70028
  • message #70028
  • message #70028
Zuzana Sochorová (Egertová), 07-09-2021 20:38
Zuzana Sochorová (Egertová)
Re : Mollisia on wood
more photos
  • message #70029
  • message #70029
  • message #70029
  • message #70029
  • message #70029
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