Accès membres

Mot de passe perdu? S'inscrire

02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

02-02-2026 14:55

Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

02-02-2026 14:33

Andgelo Mombert Andgelo Mombert

Bonjour,Sur le thalle de Peltigera praetextata, ne

31-01-2026 10:22

Michel Hairaud Michel Hairaud

Bonjour, Cette hypocreale parasite en nombre les

02-02-2026 09:29

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pour cette récolte de 2

01-02-2026 19:29

Nicolas Suberbielle Nicolas Suberbielle

Bonjour, Marie-Rose D'Angelo (Société Mycologiq

30-01-2026 22:49

éric ROMERO éric ROMERO

Bonjour tous, Récolté dans les Vosges le 22/10/

31-01-2026 09:17

Marc Detollenaere Marc Detollenaere

Dear Forum,On decorticated wood of Castanea,I foun

29-08-2025 05:16

Francois Guay Francois Guay

I think I may have found the teleomorph of Dendros

30-01-2026 21:20

Arnold Büschlen

Bryocentria brongniartii und B. metzgeriae mit ihr

« < 1 2 3 4 5 > »
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