Accès membres

Mot de passe perdu? S'inscrire

09-12-2025 12:06

Andgelo Mombert Andgelo Mombert

Bonjour,Je recherche l'article concernant Hypobryo

07-12-2025 16:07

Arnold Büschlen

Hallo, ich habe in einer Moos-Aufsammlung (epiphy

08-12-2025 21:04

Mark Stevens

"Hello everyone,I'm relatively new to microscopy (

08-12-2025 18:59

Lothar Krieglsteiner Lothar Krieglsteiner

.. found by a seminar-participant, I do not know t

08-12-2025 21:18

Buckwheat Pete

Hello everyone, Is it possible to at least approx

07-12-2025 17:43

Malcolm  Greaves Malcolm Greaves

This Helvella was in mixed woodland. Uniform cupul

08-12-2025 17:37

Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

16-03-2014 22:00

Ralph Vandiest Ralph Vandiest

Hello,I found this species a few months ago but ha

08-12-2025 13:39

Thomas Læssøe

https://svampe.databasen.org/observations/10572899

07-12-2025 22:43

Andreas Millinger Andreas Millinger

Good evening, tried to determine with Munks Valsa

« < 1 2 3 4 5 > »
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
  • message #83780
  • message #83780
  • message #83780
  • message #83780
  • message #83780
  • message #83780
  • message #83780
  • message #83780
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
  • message #83785
  • message #83785
  • message #83785