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27-10-2025 00:34

Francois Guay Francois Guay

I found this strange species in Québec,Canada, gr

27-10-2025 15:29

Michel Hairaud Michel Hairaud

Bonjour à tous, Avec Elisabeth Stöckli nous avo

26-09-2025 15:51

Jean-Luc Ranger

Bonjour, voici un ascome poussant sur crotte de la

27-10-2025 19:51

Peter Welt Peter Welt

Who has this article? Doveri, F. 2007. Sporormiel

26-10-2025 13:39

Joaquin Martin

Hi,I found this fungus in a mixed forest of spruce

27-10-2025 10:05

Tripodi Mario

Hello everyone,on October 25th, 2025 I found this

26-10-2025 21:23

Juuso Äikäs

Hello, a couple weeks ago I found some pale, whit

26-10-2025 12:01

Louis DENY

Hello forum,Trouvé à Belfort (400m) sur tige her

23-10-2025 20:59

Patrice TANCHAUD

Bonsoir, est-ce que quelqu'un posséderait un com

24-10-2025 14:50

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, Oct. 2025

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Small disco on leaves
Yatsiuk Iryna, 02-11-2011 16:24
Yatsiuk Iryna

Dear friends!


Do you have some idea about the genus of this tiny disco?


I have found it on dead leaves of Quercus robur. Fruitbodies are single, small, orange-beige, 0,2-0,5 mm in diam.


I thought about Pezicula, but apical rings are blued in IKI (colourless in MLZ)


Spores are ellipsoid, 10,9-11,4*2,4-3,6 um, hyaline, with 2-3 guttules (in water, KOH). 


Thank you before,


Irina

  • message #16584
  • message #16584
  • message #16584
Raúl Tena Lahoz, 02-11-2011 20:44
Raúl Tena Lahoz
Re : Small disco on leaves
Maybe Calycina? Do you have info about paraphyses contents?
Raúl
Neven Matocec, 03-11-2011 00:27
Neven Matocec
Re : Small disco on leaves
Hi Irina & Raul!

Yes, that might be right guess....it seems to me that asci are of Calycina type reaction (although there are number of genera apart from Calycina with that type of euamyloid reaction). Perhaps a drawing of some cell types, most preferably in statu vivo (see Baral 1992 publ. in Mycotaxon, which I can send if still needed) and observation on paraphysal & excipular layer(s) structure & gelification would be sufficiently informative. Also ascogenous system type (croziers vs. simple septate) is crucial. it is not necessary to draw whole block of texture(s) or hymenia - only group of cells.

Cordially,
Neven