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05-03-2026 10:07

Hulda Caroline Holte

Hello, I found and collected this species growing

19-02-2026 17:49

Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

28-02-2026 11:05

Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

03-03-2026 20:34

Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningThese small, amphora-shaped perithecia

28-02-2026 11:54

Alain GARDIENNET Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

02-03-2026 22:07

Jorge Hernanz

Buenas noches!Entre musgos, bajo Pinus halepensis

01-03-2026 18:02

Francois Guay Francois Guay

I found this mystery Helotiales on an incubated le

28-02-2026 14:43

Alain GARDIENNET Alain GARDIENNET

A new refrence desired :Svanidze, T.V. (1984) Novy

01-03-2026 18:46

Robin Isaksson Robin Isaksson

Hi! This species i se from time to time in the

26-02-2026 22:06

Malcolm  Greaves Malcolm Greaves

Can someone explain the features that split Geoscy

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Dasyscyphella nivea?
Ethan Crenson, 30-10-2025 03:53
Hi all, 


I would like an opinion on whether this can be definitively called Dasyscyphella nivea.

Marginal hairs are septate and have granular roughening on the lower parts, but are smooth at the ends. The ends slightly inflated, up to 3.3µm wide. 

Asci: IKI+, with (I believe) croziers, 47-55 x 3.9-5.1µm

Spores hyaline, fusiform, 5.6-8.8 x 1.7-2.5µm

Paraphyses somewhat lanceolate up to 2.8µm wide.

From a hardwood branch on the ground, probably Oak. 

Apoogies for the poor photos.

Ethan
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Michel Hairaud, 30-10-2025 10:10
Michel Hairaud
Re : Dasyscyphella nivea?
Hi Ethan, 

The genus Dasyscyphella is for sure correct. 
Did you notice any crystal in the hairs ? D. nivea , which is fairly common in Europe on the underface of hard logs, genrally shows such crystals. 

Amitiés. Michel
Ethan Crenson, 30-10-2025 23:33
Re : Dasyscyphella nivea?
Michel,

Thank you so much for your reply. I do see crystals. They are hyaline, sometimes typically diamond shaped or irregular and can be quite large. I have included a couple of images. There is also an image of the paraphyses extending beyond the asci.

Ethan
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