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24-07-2024 14:07

Trichophaea livida
Elisabeth Stöckli

Bonjour,Cette espèce a été trouvé sur place à

23-07-2024 19:27

ID ?
éric ROMERO éric ROMERO

Bonjour, Je n'ai pas d'idée pour cette espèce t

24-07-2024 13:19

Literature search: Taxonomy and phylogeny of Cryptocoryneum (Pleosporales, Dothideomycetes)
Thomas Flammer

I am looking for a PDF of the above article. Thank

22-07-2024 10:20

Peziza calyculus
Hans-Otto Baral Hans-Otto Baral

Hello please note that I uploaded today an Englis

21-07-2024 10:13

Mollisia fusca ?
Thierry Blondelle Thierry Blondelle

Bonjour,Récolte sur branchette de Castanea dans u

19-07-2024 10:24

Scutellinia
Kozak Robert

Date: 2024.07.16Loess gorges, on soil with a lot o

21-07-2024 10:28

Peziza on horse dung from California, USA
Alan Rockefeller Alan Rockefeller

Which Peziza did I find on horse dung in Humboldt

19-07-2024 11:08

Scutellinia nigrohirtula complex 090724
Miguel Ãngel Ribes Miguel Ángel Ribes

Good morningThis Scutellinia from July 9 grew at 1

21-07-2024 06:23

Literature search
Masanori Kutsuna

Dear all, Does anyone have these papers and send

08-07-2024 23:34

Scutellinia umbrarum?
Villalonga Paco

Small Scutellinia growing in garden soil (calcareo

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Minute white apos on Rubus idaeus
Stefan Jakobsson, 12-11-2023 16:54
On a dead stem of Rubus idaes I found a small group of apos, 200 µm diameter, no obvious hairs. The colour is white, turning light ochraceous when drying.

The spores are 26-33 x 1.4-2.1 µm. Sometimes (especially in CR) they seem to have three septa. The asci are not much longer than than the spores, 30-35 x 5.7-8.4 µm and somewhat thick-walled. The whole ascus turns blue in low concentrations of IKI and brown at higher concentrations. The ascus base is difficult to observe. The paraphyses are clavate, multiseptate, short-celled, sometimes branched.


I would be grateful for help with this one.

  • message #77363
  • message #77363
  • message #77363
  • message #77363
  • message #77363
Hans-Otto Baral, 12-11-2023 17:31
Hans-Otto Baral
Re : Minute white apos on Rubus idaeus
I think I saw this but cannot find. I thought in Vezdaea (in my folder Lecanorales) but I see no species with such spores.

Helicogonium conniventis has similar spores, and there is a H. paraconniventis folder with minute white apothecia, but all Helicogonium have inamyloid asci.
Stefan Jakobsson, 14-11-2023 15:10
Re : Minute white apos on Rubus idaeus
Thank you! That Vezdaea helped me to find Bacidina, which now has been confirmed by Stefan Ekman. He sais that it is Bacidina chloroticula.
Hans-Otto Baral, 14-11-2023 17:07
Hans-Otto Baral
Re : Minute white apos on Rubus idaeus
Ha! This was probably what I remembered. I have two species in my folder Bacidina (Ramalinaceae, Lecanorales), B. arnoldiana and B. delicata. Both are relatively similar to yours, and I am not able to tell the differences.
Stefan Jakobsson, 14-11-2023 18:11
Re : Minute white apos on Rubus idaeus
For anybody interested, here is a link to a paper on Scandinavian species: