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05-12-2025 17:33

Lachnum sur feuille de chêne
Bruno Coué Bruno Coué

Bonjour, je serais heureux de recueillir votre avi

04-12-2025 23:53

Anthracobia key
Malcolm Greaves Malcolm Greaves

Is there an up to date Anthracobia key available?T

04-12-2025 21:30

literature search
Ethan Crenson

Hello all, I am looking for the following:  Bar

02-12-2025 18:59

Round spores asco
Malcolm Greaves Malcolm Greaves

This pair of ascos 2.5cm across were on recently b

03-12-2025 20:02

Godronia sp.
Buckwheat Pete

Hello everyone, does anyone know the genus Godroni

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Lasiosphaeriaceae
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Hello, can anyone identify this hairy fungus growi

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Urceolella crispula?
Mirek Gryc

527 / 5 000Hello everyoneThey grew on dead shoots

30-11-2025 12:53

Calycina cf. languida
Edvin Johannesen Edvin Johannesen

White short-stipitate apothecia found on thin twig

30-11-2025 10:47

Peziza fimeti or granulosa
William Slosse William Slosse

I recently found a collection of small Peziza sp.

27-11-2025 12:01

Valsa/Cytospora on Cryptomeria bark - Denmark
Thomas Læssøe

https://svampe.databasen.org/observations/10496727

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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).