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15-09-2021 12:41

Mirek Gryc

Hello allDear forum members, are my suspicions cor

16-09-2021 22:08

jean claude chasle

Bonsoir, Récolté en milieu humide sur brindille

15-09-2021 19:48

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur branche morte d'Alnus alnobetula, en

16-09-2021 12:07

Castillo Joseba Castillo Joseba

De ayer en corteza de fagusA ver si hay alguna sug

15-09-2021 17:52

Ueli Graf Ueli Graf

The ostropalean fungi (Mycotaxon) 1977 von Martha

12-09-2021 12:18

Andgelo Mombert Andgelo Mombert

Bonjour, Sur tige morte d'Equisetum sp., vers 200

14-09-2021 19:26

Andgelo Mombert Andgelo Mombert

Bonsoir, Sur tiges mortes d'Epilobium angustifoli

14-09-2021 19:01

Juuso Äikäs

I found some small Lachnum-like fungi a couple day

09-09-2021 15:18

Maria Plekkenpol

Hello,On pieces of acorn cap buried in the ground

14-09-2021 19:41

Enrique Rubio Enrique Rubio

Could someone give me a copy of this item?Coniocha

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Mollisia albogrisea
Zuzana Sochorová (Egertová), 20-07-2021 15:08
Zuzana Sochorová (Egertová)Hi,
I have collected this ascomycete in a constantly wet and rather cold locality in the Czech Republic, on a twig of a deciduous tree, still with some bark.
Using the key to Mollisia by Andreas Gminder, I´m coming to point 18 in the subkey "wood, bark". Then, the best possibility is M. albogrisea, although the apothecia in my collection cannot be described as white.

Key characters: Ascospores (9.1) 9.7 - 11.3 (12.1) × (2.3) 2.5 - 2.7 (2.9) µm, Q = 3.4-4.6, Me = 10.3 × 2.6 µm; Qe = 4, OCL = 0-1, 1-celled.
Asci (62.1) 67.2-70.7 (75.1) × (6.9)7-7.6 µm, IKI bb, H+.
Subhymenium built of hyaline hyphae.
Very distinct yellow reaction in 5% KOH.

Do you agree with my identification?

I have read a discussion here at ascofrance, and if I understand it well, Mollisia albogrisea was a nom. prov., but the species was later described as Phaeomollisia piceae and then combined to Phialocephala piceae.
Zuzana
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Zuzana Sochorová (Egertová), 20-07-2021 15:10
Zuzana Sochorová (Egertová)
Re : Mollisia albogrisea
more photos
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Zuzana Sochorová (Egertová), 20-07-2021 15:13
Zuzana Sochorová (Egertová)
Re : Mollisia albogrisea
the substrate
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Hans-Otto Baral, 21-07-2021 08:43
Hans-Otto Baral
Re : Mollisia albogrisea
Hi Zuzana

I asked Ingo Wagner and he tends to accept this ID. For comparison he sent a link


At least the marginal ectal excipulum is hyaline in your sample. M. albogrisea is well-explored by ITS sequences, and sequences of the anamorph Phialocephala picea have a strong match. Even ITS1 or ITS2 alone would be enough to confirm the species.

Since there is a Mollisia piceae (Pers.) Quel. which is of unclear identity, a new name must be proposed when not splitting Mollisia in several genera. Gminder's name albogrisea would be a good cbhoice in our opinion.

Zotto
Zuzana Sochorová (Egertová), 21-07-2021 09:14
Zuzana Sochorová (Egertová)
Re : Mollisia albogrisea
Hi Zotto,
thank you and also Ingo.
Yes, both our collections look +- the same.
Sequencing could surely help, but we don´t have a budget to sequence everything :-) I will think about it.
Best, Zuzana
Andreas Gminder, 22-07-2021 21:47
Andreas Gminder
Re : Mollisia albogrisea
Dear Zuzana,
I also think that Mollisia albogrisea fits well for yur collection. The species is not always white or very light grey, but sometimes it can be deep grey.I prefer to maintain the name Phialocephala picea, as I think its better to split Mollisia to several genera than to keep one large genus Mollisia.

all the best,Andreas
Zuzana Sochorová (Egertová), 22-07-2021 22:23
Zuzana Sochorová (Egertová)
Re : Mollisia albogrisea
Dear Andreas, 
thanks a lot for confirmation.
Zuzka