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26-02-2026 22:06

Geoscypha
Malcolm Greaves Malcolm Greaves

Can someone explain the features that split Geoscy

26-02-2026 15:00

En madera sin determinar
Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia, recolectada

24-02-2026 00:21

Pezizale
Benoît Segerer

Hello,I'm new to this forum, I hope I won't be irr

24-02-2026 11:01

Anamorph on Tilia
Gernot Friebes

Hi,found on a branch of Tilia, with conidia measur

23-02-2026 11:22

lasiosphaerioid on pine cone with small, slender spores - Denmark
Thomas Læssøe

https://svampe.databasen.org/observations/10584971

29-11-2024 21:47

Calycina heterospora
Yanick BOULANGER

BonjourJ'avais un deuxième échantillon moins mat

07-02-2023 22:28

Fracchiaea callista? on Carpinus
Ethan Crenson

Hello friends, On Sunday, in the southern part of

19-02-2026 17:49

Ayuda con Tarzetta sp
Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

09-02-2026 22:01

Sp
ruiz Jose

Hola, me paso esta colección en madera de pino, t

19-02-2026 13:50

Hairy disc-"Patinella sanguineoatra" like
Margot en Geert Vullings

We found this collection on deciduous wood on 7-2-

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Black Mollisia on Salix
Michel Hairaud, 06-09-2023 21:45
Michel HairaudBonsoir, 

Je ne trouve pas d'identité pour ce Mollisia récolté sur branche de Salix au sol et ayant un aspect de Patellaria atrata: Apothécies 0,5-1,5 mm, noirâtres, sans marge relevée, à surface externe sublisse. 
Asques 60-65 x 5 , PS 22 µm, spores 6-8 x 2-2,2 µm, OCI 0,5 (1) 
Paraphyses x 4-5 µm
Cellules de l'ectal à parois brun rouge foncé , de diamètre jusqu'à 18 µm 
Cellules marginales courtes, la dernière : 15-17 x 5-8 µm 
KOH négatif

Merci pour tout indice. 
Amitiés
Michel 

  • message #76850
  • message #76850
  • message #76850
Hans-Otto Baral, 07-09-2023 10:18
Hans-Otto Baral
Re : Black Mollisia on Salix
Hi Michel,

this is all but easy. maybe the apothecia got dark with age and were more grey when young?

I cannot exclude M. cinerea, although that species was surely applied for a number of different taxa in the past.

Zotto
Michel Hairaud, 07-09-2023 11:18
Michel Hairaud
Re : Black Mollisia on Salix
Thanks Zotto for your answer, 
M. cinerea is among the closest species which can be compared , indeed.
at least for spore shape and OCI,  

Moreover it appears  that even the smallest or new developped specimens are that black . Another feature  seems distinctive: there is no white rim on the margin 
But there are collections in your cinerea folder which look very similar 

Amitiés
Michel

Hans-Otto Baral, 07-09-2023 11:35
Hans-Otto Baral
Re : Black Mollisia on Salix
My folder is surely heterogeneous. Our experience with Mollisia is that without the combination with DNA no good concept can be achieved in many of the taxa.
Ingo Wagner, 10-09-2023 16:16
Ingo Wagner
Re : Black Mollisia on Salix
Hi Michel!

Normally the spores of your find are too short and narrow for M. cinerea.
Mollisia cinerea is in my opinion a species of the half-year approximately from november-april.


Take a look here at Zotto's IVV to this relatively recently described species:
https://drive.google.com/drive/u/0/folders/1bxySecfsFmqs9gYxo5tRg7JHileyLd_7?tid=0B5SeyOEkxxZhYVZub0N1aGY5YTg


Shape and color of apos could be a problem though.
Or it's just a new, undescribed one.
There are really quite a few of them.


Greetings
Ingo

Hans-Otto Baral, 10-09-2023 20:38
Hans-Otto Baral
Re : Black Mollisia on Salix
One must add that Ingo's collection there was sequenced and falls to Mollisia novobrunsvicensis by 99.8% (1 Nukleotide deviation in ITS). Without this sequence we would not have been sure what it is. But there are more sequences from Europe that fall here, e.g. one by Brian Douglas (SW 19).