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04-05-2026 18:13

Stephen Martin Mifsud Stephen Martin Mifsud

ID request for what seems to be a true aquatic fun

04-05-2026 16:39

Stephen Martin Mifsud Stephen Martin Mifsud

ID request: This specimen was collected in Malta o

04-05-2026 09:50

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia,(España) re

28-04-2026 20:07

Lothar Krieglsteiner Lothar Krieglsteiner

... on twig in the air at standing Ceratonia siliq

03-05-2026 11:38

Castillo Joseba Castillo Joseba

Me mandan el material seco, recolectado en dunasLo

02-05-2026 12:42

Alain BRISSARD

Bonjour à tousJeuidi 30 avril dernier on m'a remi

02-05-2026 13:06

Pauline. Penna

Bonjour  Please can someone help me with this id

01-05-2026 22:45

Thierry Blondelle Thierry Blondelle

Bonjour à tous, Une récolte sur bouse séchée d

14-04-2026 05:32

Ethan Crenson

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

28-04-2026 20:33

Vitus Schäfftlein

Hello, I found Trochila ilicina on Ilex aquifoliu

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Small disco on Quercus
Masanori Kutsuna, 04-12-2012 01:26

Hello everyone,

Disco on twigs of Quercus sp. found in October, Japan.
Fruitbody 3-8 mm. in diam, stalked.
Asci 8-spored, IKI+, 7-8.6 x 102-120 microns,
paraphyses filiform, sometimes brown.
ascospores long elliptical, sometimes inequilateral, smooth, hyaline, with small drops in each end, 3.0-3.5 x 11-13 microns.
Ectal excipulum thin-walled, prismatic cells,
medullary excipulum interwoven hyaline hyphae,
surface hyphae with roughend by brown granules.   

It lools  like Rutstroemia firma, but ascospores are aseptate, form short germ tube. 
I'd appreciate your advice.

Masanori Kutsuna    
  
  

  • message #20614
  • message #20614
Hans-Otto Baral, 04-12-2012 09:50
Hans-Otto Baral
Re : Small disco on Quercus
I wanted to suggest Moellerodiscus lentus but that genus has globose excipular cells.

A prismatica in combination with small spores with few small oil drops sounds unusual.

Zotto
Masanori Kutsuna, 05-12-2012 00:26
Re : Small disco on Quercus
Thank you, Zotto.

Regards  

Masanori