Accès membres

Mot de passe perdu? S'inscrire

21-12-2006 18:23

Dmitry Gavryushin

Dec. 09, 2006, Naro-Fominsk, Moscow region, Russia

17-12-2006 21:02

Jean Pierre Dechaume Jean Pierre Dechaume

trouvé lle 17 12 2006, un "Geoglossum" à spore

16-12-2006 11:27

Jean Pierre Dechaume Jean Pierre Dechaume

trouvé en compagnie de Thuemenidium atropurpurea,

16-12-2006 09:23

michel hurtu

ci joint une espèce récoltée sur branche de feu

14-12-2006 10:11

Dmitry Gavryushin

Dec.05, 2006, our town park. Diameter 5 mm.

11-12-2006 21:10

Enrique Rubio Enrique Rubio

Je voudrais connaître une opinion sur ce Nectriac

10-12-2006 19:25

Enrique Rubio Enrique Rubio

Je voudrais connaître une opinion sur ce Dermatea

09-12-2006 18:45

Dmitry Gavryushin

Dec. 05, 2006, our town park. Size of separate fr

09-12-2006 18:40

Dmitry Gavryushin

I picked that piece of wood for these fungi, I've

09-12-2006 18:35

Dmitry Gavryushin

Dec. 05, 2006, Naro-Fominsk (55° 23' N, 36° 44'

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acrspermum
Didier ARGAUD, 04-01-2007 14:12
Bonjour à tous

Connaissez-vous l'espèce suivante: cf photo
C'est un acrospermum mais lequel, il semble different (macroscopiquement) de compressum, que je connais déjà. La microscopie semble la même.
Substrat: herbacées mais pas sur ortie.
Est ce graminum ? ou autre?

Didier
  • message #1231
Björn Wergen, 14-01-2007 14:21
Björn Wergen
Re:acrspermum
Dear Didier,

I know about three species in the genus Acrosperum: A. compressum, A. graminum and A. pallidulum. All three are hard to determine because they have nearly the same characteristics.
A. compressum usually grows on old stems of Urtica and is 2-4 mm high, with a grey-brown surface. Spores are about 400 µm long.
A. graminum grows on little stems of graminaceen and has smaller fruitbodies (1-2,5 mm). The color is brownish, pale-brown.
A. pallidiulum also has pale-brown fruitbodies but spores around 300µm long and grows on dead stems of "Galium". I just know this species from literature but didn't find it in nature yet.

Differences are flowing into each other and it would not surprise me, if there are only 2 species instead of three or more (I do not know about others...).

Greetings,
Kaz
Didier ARGAUD, 14-01-2007 21:06
Re:acrospermum
Merci pour la réponse
Didier