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20-07-2021 15:08

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hi, I have collected this ascomycete in a constant

20-07-2021 13:50

Garcia Susana

Hola, He recogido esta orbilia creciendo sobre ma

22-07-2021 19:03

Castillo Joseba Castillo Joseba

De esta mañana en un tronco de madera sin determi

21-07-2021 14:37

Juuso Äikäs

This solitary Scutellinia was growing on wet, mudd

21-07-2021 15:38

Michel Hairaud Michel Hairaud

Bonjour , Récolte du 13 07 2021 de ce Mollisia t

21-07-2021 13:09

Juuso Äikäs

Yesterday I found some rose-coloured Orbilias grow

21-07-2021 11:54

Edvin Johannesen Edvin Johannesen

Eggyolk-yellow disc, white hairs with distinct cry

10-07-2021 23:17

Edvin Johannesen Edvin Johannesen

Hi! These tiny (1-3 mm diam) stalked apothecia we

21-07-2021 09:16

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hi, please, could somebody share this paper?Thind

19-08-2020 20:40

Chris Yeates Chris Yeates

Bonsoir tous Collected yesterday on damp dead Vac

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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