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19-04-2026 21:23

Hairy anamorph on plywood with beaked curved conidia
Steve Clements

Bonjour, I found this anamorphic fungus on old pl

19-04-2026 20:46

Anamorphic fungus on plywood
Steve Clements

1 mm diameter approx spherical conidiophores on pl

12-04-2026 17:56

Seeking genus for 1 – 3 septate spored asco. on herb Nepteta cataria (Mint).
Hardware Tony Hardware Tony

Found on dead stems in February earlier this year

17-04-2026 19:16

Small dark synnemata on rotten hardwood
Enrique Rubio Enrique Rubio

Hi to everybodyI would appreciate any assistance r

14-04-2026 05:32

Pyrenomycete with yellow subiculum on Aralia
Ethan Crenson

Hi all, A few weeks back a friend pointed out som

17-04-2026 15:14

sur feuilles de Luzula
Bruno Coué Bruno Coué

Bonjour.Récoltes du 16/04/2026, sur feuilles mort

12-04-2026 15:52

Anamorph on Salix
Gernot Friebes

Hi,I'm looking for help with this anamorph collect

14-04-2026 21:52

Thyriothecioid anamorph on Carex elata
Gernot Friebes

Hi,found on dead leaves of Carex elata. Conidia: 4

16-04-2026 22:09

Parorbiliopsis samarae?
Buckwheat Pete

Hello, I'd like to ask about this older specimen:

15-04-2026 19:33

Scutellinia cf. citrina
Fátima Durán Manzaneque

Hi!! I need help, I found this Ascomycete but I d

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Patellaria atrata ou Claussenomyces atrovirens ??
Bernard CLESSE, 09-02-2020 20:39
Bernard CLESSESur tronc mort et décortiqué de chêne en ambiance humide.

Je pensais à Patellaria atrata mais Raul Tena Lahoz propose Claussenomyces atrovirens, que je ne connaissais pas. 

Pourriez-vous donner votre avis et me dire quelle est la différence entre ces deux taxons ?

Grand merci d'avance !

Bernard
  • message #61439
  • message #61439
  • message #61439
Hans-Otto Baral, 09-02-2020 20:45
Hans-Otto Baral
Re : Patellaria atrata ou Claussenomyces atrovirens ??
Thsi difference is huge: Patellaria forms septate spores with a high oil content that are ejected as such. Clauss. atrovirens and related species forms septate spores with low oil content (see your photo) and these spores germinate inside the immature asci to form numerous minute conidia. The conidia aggregate in balls, see your photo. The balls are ejected. Some conidia are floating in your preparation. they are rod-shaped and also the possible absence of longisepta in the ascospores (only cross-septa) point against atrovirens.

A difficult genus with some undescribed species. Look in my folde and compare e.g. C. munathinus and C. xylophilus.

The genus stands in the Phacidiales, Tympanidaceae.
Raúl Tena Lahoz, 09-02-2020 20:59
Raúl Tena Lahoz
Re : Patellaria atrata ou Claussenomyces atrovirens ??
In fact, my anwser to Bernard was to draw his attention to Claussenomyces... I didn't try to get deeper in this difficult genus.
Cheers,
Raúl
Bernard CLESSE, 09-02-2020 21:22
Bernard CLESSE
Re : Patellaria atrata ou Claussenomyces atrovirens ??
Great thanks Peter, Raul and Zotto !!

I learned a lot of new things again! What an extraordinary forum!


And sorry to have generated two discussions instead of one (a handling error!)


Bernard