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06-07-2020 16:40

Michel Delpont Michel Delpont

Bonjour à tous. Sur crottes de chèvres deux exe

06-07-2020 14:11

Thomas Læssøe

Unfortunately without a proper hymenium (overmatur

06-07-2020 17:11

Thomas Læssøe

see: https://svampe.databasen.org/observations/10

06-07-2020 11:16

Valencia Lopez Francisco Javier

Hola a tod@sHace unos días recolecte este hongo e

06-07-2020 12:55

Thomas Læssøe

see: https://svampe.databasen.org/observations/10

06-07-2020 05:51

Yulia Lytvynenko

Dear friends.Looking for a copy of the following w

05-07-2020 17:52

Juuso Äikäs

I found these growing on dead, fallen canes of Rub

05-07-2020 18:06

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia, recolectado

05-07-2020 10:31

Castillo Joseba Castillo Joseba

me mandan el material de Galicia, recolectado en h

03-07-2020 17:47

Thomas Læssøe

see: https://svampe.databasen.org/observations/10

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Mollisia ID
Nicolas VAN VOOREN, 25-05-2017 18:40
Nicolas VAN VOORENHello.
Here is a collection of Mollisia made on a dead branch of Quercus, on soil, with Lachnum virgineum and another Mollisia species (not yet studied). A subiculum is present.
Apothecia Ø 1-2.5 mm. 5% KOH negative.
Ectal excipulum of textura angularis/subglobulosa, with cells 5–18 µm wide, becoming a textura ± prismatica on the flanks (see fig. 2), emerging in pseudo-hairs, up to 42 µm in length. Medullary excipulum of t. intricata, with hyaline hyphae.
Asci 100-110 × 7-8 µm, with crozier, pars spor. ~47-52 µm, apical ring IKI+ (bb).
Paraphyses with a long refractive VB, Ø 2.5–3.5 µm
Ascospores 17–20 (21.5) × 2.8-3 µm, OCI~3, sometimes with a central septum (but not in asci).

I didn't find any species that matches with these characters, so any help will be useful.
  • message #49013
  • message #49013
  • message #49013
Hans-Otto Baral, 25-05-2017 20:27
Hans-Otto Baral
Re : Mollisia ID
Hi Nicolas
 
I do not remember such a species. It reminds me a bit of Mollisia elegantior, but the much larger spores and their much higher oil content exclude this.

Did you study the brown subiculum, are the hyphae thick-walled and 4-6 µm wide?


Zotto

P.S. just detected a collection which seems to be the same, with spores 15-21 x 2.5-3.5:

E. Rubio: Pola de Somiedo, 29-IV-2017, growing on a dense felty brown subiculum on wood of Corylus avellana.

I put both in a directory named "elegantior aff.".
Nicolas VAN VOOREN, 25-05-2017 22:22
Nicolas VAN VOOREN
Re : Mollisia ID
Thanks Zotto.
About the subiculum, I just noted that the wall measures up to 1 µm thick.