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21-12-2025 12:34

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

20-12-2025 23:08

Patrice TANCHAUD

Bonsoir, récolte sur sol sablonneux dans l'arriÃ

21-12-2025 09:32

Josep Torres Josep Torres

Hello.A tiny ascomycete found embedded in wood in

21-12-2025 01:54

David Chapados David Chapados

Hi,Would it be possible to find the species with t

20-12-2025 15:47

Mirek Gryc

Hi.These grew on pine wood that was heavily covere

20-12-2025 10:49

Mirek Gryc

Hi. „I doubt it is possible to identify this ti

18-12-2025 21:17

Pol Debaenst

The identification took me to Byssonectria deformi

15-12-2025 07:09

Danny Newman Danny Newman

indet. Rutstroemiaceae sp. on unk. fallen leavesMc

19-12-2025 10:10

Patrice TANCHAUD

Bonjour, récolte réalisée en milieu dunaire, a

18-12-2025 17:23

Bruno Coué Bruno Coué

Bonjour,je serais heureux d'avoir votre avis sur c

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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.