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28-10-2013 09:26

Yannick Mourgues Yannick Mourgues

Bonjour à tous.Qui saurait où je peux trouver le

17-10-2013 14:09

Gilbert MOYNE

Bonjour,Un petit asco qui me pose problème :Habit

24-10-2013 22:45

Ralph Vandiest Ralph Vandiest

Hello,I found these peziza at the edges of a more

22-10-2013 21:51

Jean-Luc Ranger

Bonjour à tous, Voici une Otidea qui semble corre

23-10-2013 18:19

FRANCIS FOUCHIER

Dear all, does anyone have a digital copy of the

20-10-2013 12:53

Rubén Negrín

Hola a todos. Sigo el foro pero es la primera vez

22-10-2013 17:08

Enrique Rubio Enrique Rubio

Can you help me with this article? Schumacher, T.;

17-10-2013 21:54

FRANCIS FOUCHIER

1) Est-ce bien un Coccomyces?D'après la clé de S

20-10-2013 23:43

Alain BRISSARD

Rebonsoir à tousLa encore je sollicite votre cont

30-09-2013 22:40

Chris Johnson

Bonsoir I had this Scutellinia labelled as S. scu

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Nimbomollisia (Niptera) eriophori?
Marcus Yeo, 23-08-2022 20:41
This small discomycete was growing on dead leaves of Eriophorum vaginatumin blanket bog at about 550m alt in NW England. Details as follows:

Apothecia sessile; cup-shaped; ca 300 µm diam.; hymenium pale grey; exterior brownish orange.


Excipulum brown textura globulosa.


Paraphyses narrowly cylindrical (2-2.5 µm wide), sometimes swollen at apex; sometimes branched; cylindrical refractive VB in upper part.


Asci clavate; ca 100-110 x 13-16 µm; 8-spored (biseriate); IKI+ blue; with shallow apical ring.


Ascospores fusiform; hyaline; free spores 21-23 x 6 µm; mostly 1-septate, but free spores sometimes 2-septate; scattered small OBs, mainly near ends of spore.


This seems to resemble Nimbomollisia (Niptera) eriophori. I didn't notice gelatinous sheaths on the spores when examining the specimen but the image of spores in the ascus in MLZ seems to show some sort of gelatinous structure at the ends of the spores. Some of the paraphyses have swollen apices but this feature isn't as well developed as I would have expected in Nimbomollisia.


I'd be grateful for a second opinion.


Thanks


Marcus

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Hans-Otto Baral, 23-08-2022 21:33
Hans-Otto Baral
Re : Nimbomollisia (Niptera) eriophori?
I agree it is. You did not see any living free spores? There the sheath is usually well visible without any staining, also inside living mature asci it is strongly present. It obscures in dead material.

Enrique has nice images (ERD-4532, ERD-6767).
Marcus Yeo, 23-08-2022 21:53
Re : Nimbomollisia (Niptera) eriophori?
Thank you.

There were very few free spores. Spores in the asci were difficult to see clearly (see images) but I couldn't see any obvious caps or sheaths.
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Hans-Otto Baral, 23-08-2022 22:05
Hans-Otto Baral
Re : Nimbomollisia (Niptera) eriophori?
In the first new image I can actually see them, they are only terminally obvious (broad and thick). The other photo shows dead asci - impossible to see there.
Marcus Yeo, 23-08-2022 22:15
Re : Nimbomollisia (Niptera) eriophori?
Yes I see what you mean! I can just about make out the caps on a couple of the spores in the first image.