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15-10-2025 16:39

Tiny white apothecia on Populus inner bark
Edvin Johannesen Edvin Johannesen

These tiny (0.2-0.6 mm), white, pulvinate apotheci

23-09-2025 13:31

"Bertia-like" Sordariales on Typha - Denmark
Thomas Læssøe

https://svampe.databasen.org/observations/10534623

03-10-2025 13:44

Unknown on Populus -> Pyxidiophora species
Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde on Populus

13-10-2025 19:05

Blanc sur tronc décortiqué
Louis DENY

Bonjour forumSur tronc décortiqué de feuillu x,

17-02-2013 21:11

Search
Peter Welt Peter Welt

Jamoni, P.G. 1998. Un nuovo discomicete coprofilo

11-10-2025 20:27

On Robinia pseudoacasia
Marcel Heyligen Marcel Heyligen

Found on a barked branch, 14 mm in diameter, of Ro

11-10-2025 14:20

Chromelosporium
Jean-Luc Ranger

bonjour à tous, Je ne vois pas comment l'on peut

09-10-2025 22:14

Hymenoscphyus or Bryoscyphus? Yellow cup / white stipe
S. Rebecca

We just had the Bavarian Mycology Conference in Au

10-10-2025 00:49

Amicodisca svrcekii ?
Ethan Crenson

Hello all, This was found last weekend on a hardw

06-10-2025 15:57

Lophiostoma
David Chapados David Chapados

Hi, Could anyone help me with this Lophiostoma? 

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Cosmospora sp?
Björn Wergen, 11-02-2014 10:52
Björn WergenHi there,

a few weeks ago I received a collection of a nectrioid species growing on dead Alnus viridis bark. It has small orange fruitbodies of 0,25-0,32mm diametre and Spores of only 2,8-3,4x2,5-3µm, with one septation. Asci 40-50x3,5-5µm, no paraphyses seen. Wall 30-40µm. Does it belong to the genus Cosmospora? I did not see a species like this one before...

Ideas are welcome, of course :D

regards,
björn
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Walter Gams, 11-02-2014 11:12
Walter Gams
Re : Cosmospora sp?
Lieber Björn,  Solche interessante Funde sollten in Kultur genommen werden. Könnte ich evt. versorgen. Kennst Du die Arbeit von Gräfenhan et al., Stud. Mycol. 69: 79. 2011? Freii im Inteent abzurufen.
Herzlichen Gruß    Walter
Björn Wergen, 11-02-2014 20:25
Björn Wergen
Re : Cosmospora sp?
Hi Walter,

I bet you mean SM 68: p79? Of course I have read it, but I am not sure how to use it here. Do you want to have sent this collection?

regards,
björn
Walter Gams, 11-02-2014 21:17
Walter Gams
Re : Cosmospora sp?
Yes, please. My address: Molenweg 15. 3743 CK Baarn, NL
With the Gräfenhan paper you willl not get along without a cullture.
Walter Gams, 20-02-2014 16:44
Walter Gams
Re : Cosmospora sp?
Hi Björn,  Thank you for the material. I could not find any nectrioid perithecia on the specimen, only the acremonium-like anamorph of your Cosmospora. Unfortunately, I did not get it to grow. Perhaps you have still other material?. Where did it come from?. I gather you do not have Alnus viriidis in the Eifel? For more discussion I suggest direct e-mail contact. Mine: walter.gams@online.nl