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12-03-2026 19:44

Enrique Rubio Enrique Rubio

Hi to everybody.Can you give me any suggestions ab

05-03-2026 10:07

Hulda Caroline Holte

Hello, I found and collected this species growing

12-03-2026 15:45

Åge Oterhals

Dear forum,I found this small discomycete on a ver

12-03-2026 16:17

Sylvie Le Goff

Bonjour à tousRécolté dans le 22 en France (ré

11-03-2026 17:36

Michel Hairaud Michel Hairaud

Bonjour, Je cherche des indices  pour cette réc

14-03-2026 13:51

Thierry Blondelle Thierry Blondelle

Hi everybody Under Quercus ilex, i hesitate to na

08-03-2026 14:05

Thierry Blondelle Thierry Blondelle

Bonjour à tous,Sur 3 récoltes supposées de H. l

12-03-2026 14:37

David Wasilewski

These small ascomycota (1-3 mm) ere observed growi

11-03-2026 16:48

Bruno Coué Bruno Coué

Bonjour, je serais heureux d'avoir votre avis sur

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

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Hypocreales?
Masanori Kutsuna, 22-05-2012 02:18
Dear everyone

I am a Japanese amateur mycologist, this is my first post in the forum.
Last summer, I found some pyrenomycetes on decaying wood, probably Quercus sp.
Stroma superficial, cushon-shaped, 3-8 mm., pinkish, roughtened with bullet-shaped purplish-brown projections of  ostioles.
Perithecia immerced at different levels, 270-320 ???m. in diameter.
Asci cylindric, IKI-, 8-spored, uniseriate, 2.8-3.2 x 34-42 ?m.
Ascospores subglobose, hyaline, smooth (minutely punctate?), 2.2-2.6 ?m.
I don't know a genus for it.
Can you help me?

regards,
Kutsuna
  • message #18673
  • message #18673
Christian Lechat, 22-05-2012 03:25
Christian Lechat
Re : Hypocreales?
Dear Masanori,
It is the genus Hypocrea, ?

Regards,
Chirstian
Masanori Kutsuna, 22-05-2012 03:55
Re : Hypocreales?
Hello, Christian

Thank you for your reply.
I think, Hypocrea is characterised by perithecia in the upper part of the stromata, and bicellular ascospores disarticulating in the ascus to 16 spores.
Is their any Hypocrea species that perithecia arranged at different levels such as my fungus?

regards,
Kutsuna  
Jacques Fournier, 22-05-2012 09:00
Jacques Fournier
Re : Hypocreales?
Hi Kutsuna,
welcome on the forum with this very unusual fungus.
I am thinking of Amplistroma, a new genus created by Sabine Huhndorf et al (2009) Mycologia 101: 904-919. The combination of small fleshy stromata with projecting ostioles, polystichous perithecia and cylindrical asci with hyaline minutes globose ascosopores matches well this genus.
Amplistroma carolinianum, known from USA, fits fairly well your collection but you should ask confirmation from Sabine who is a member of the forum too.
Cheers,
Jacques
Masanori Kutsuna, 22-05-2012 09:22
Re : Hypocreales?
Hello Jacques

It must be Amplistroma!
Thank you.

regards,
Kutsuna