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14-11-2025 18:31

Lothar Krieglsteiner Lothar Krieglsteiner

Hello,can somebody provide me with a file of:Rothe

14-11-2025 16:26

Marian Jagers Marian Jagers

Hello everyone, On dead wood of Cytisus scoparius

12-11-2025 21:47

ruiz Jose

Hola a todos, me envían esta colección en resto

12-11-2025 09:25

Viktorie Halasu Viktorie Halasu

Hello, I need help with a pale terrestric Pseudom

11-11-2025 20:16

Bohan Jia

Hi, lastly I have found these tiny yellow decayin

09-11-2025 13:20

Josep Torres Josep Torres

Hello.A tiny ascomycete, appearing as erupting gra

08-11-2025 12:10

Elisabeth Stöckli

Bonjour, Trouvé sur tiges mortes de Rubus (ronce

08-11-2025 00:29

Francois Guay Francois Guay

I found this species in Quebec, Canada, on herbace

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

08-11-2025 09:15

Michel Hairaud Michel Hairaud

Bonjour, Pouvez vous m'aider à identifier ce Mol

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Colpoma or Lophodermium -like on Rubus idaeus
Michel Hairaud, 11-09-2019 18:33
Michel Hairaud

Bonjour,  


J'ai récolté cette espèce sur Rubus idaeus en zone alpine pour laquelle je ne trouve pas l'identité . Asques 155_160 x 12-13  Spores 70-75 x 3 µm , paraphyses enroulées x 2µm


Merci de votre aide


Amitiés. Michel


 

  • message #59210
  • message #59210
Hans-Otto Baral, 11-09-2019 20:28
Hans-Otto Baral
Re : Colpoma or Lophodermium -like on Rubus idaeus
Hi Michel
assuming that your spores go up to 100 µm, I checked my database with 50-100 x 2-3.5 µm and found nothing on Rubus, except for Stictis firabilis and S. sulfurea (= S. firabilis), which is certainly not the fungus you found.

Zotto
Martin Bemmann, 11-09-2019 21:23
Martin Bemmann
Re : Colpoma or Lophodermium -like on Rubus idaeus
Hi Michel and Zotto,

how is Lophodermium rubicola?:


regards

Martin
Hans-Otto Baral, 11-09-2019 21:27
Hans-Otto Baral
Re : Colpoma or Lophodermium -like on Rubus idaeus
Hallo Martin

Interesting, but I would exclude this species because of the "exceedingly slender" spores of hardly 0.75 µm width, small and narrow asci (60-70 x 4) and occurrence in Alabama.

Zotto
Michel Hairaud, 11-09-2019 21:52
Michel Hairaud
Re : Colpoma or Lophodermium -like on Rubus idaeus

Merci Martin and Zotto.


So would I, Zotto,  as in Tehon's description for his recombination into Dermascia rubiicola not only spores are that thin (up to 1 µm) but both ends are acute , which is not the case here.


 Is there someone studying particularly this group at the moment ?  


 Michel

Hans-Otto Baral, 11-09-2019 22:01
Hans-Otto Baral
Re : Colpoma or Lophodermium -like on Rubus idaeus
I am not aware of anybody. Anyway, please correct the spore length in your posting.
Martin Bemmann, 11-09-2019 22:44
Martin Bemmann
Re : Colpoma or Lophodermium -like on Rubus idaeus
yes it was a quick (and short) shot...