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09-01-2026 10:08

Blasco Rafael Blasco Rafael

Hola, en el mismo habitat que la anteriorRetamaDia

08-01-2026 21:22

Blasco Rafael Blasco Rafael

Hola, He recogido esta muestra de Orbilia sobre Re

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Danny Newman Danny Newman

Pezicula sp. on indet. hardwood Appalachian Highl

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Danny Newman Danny Newman

Tatraea sp. on indet. hardwood The Swag, Great Sm

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Marc Detollenaere Marc Detollenaere

Dear Forum,On a barkless Populus I found some smal

10-11-2021 17:33

Riet van Oosten Riet van Oosten

Add-on topic http://www.ascofrance.com/forum/7059

07-01-2026 10:05

Danny Newman Danny Newman

cf. Chaetospermum on XylariaCosby Campground, Grea

06-01-2026 20:54

Thierry Blondelle Thierry Blondelle

Bonjour à tous et meilleurs voeux pour cette nouv

02-01-2026 17:43

MARICEL PATINO

Hi there, although I couldn't see the fruitbody, I

04-01-2026 17:45

Stephen Martin Mifsud Stephen Martin Mifsud

I was happy to find these orange asmocyetes which

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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