Accès membres

Mot de passe perdu? S'inscrire

28-09-2009 21:14

Enrique Rubio Enrique Rubio

Hi to all: I’d like to know your opinion ab

27-09-2009 00:27

Perz Piotr

Hi ! This ?Melanospora I found directly on Pice

27-09-2009 00:05

Perz Piotr

Dear Asco-Friends Yesterday I find this little,

23-09-2009 14:17

Alain BRISSARD

Une pézize remise lors d'une exposition de la SML

22-09-2009 21:51

Alain GARDIENNET Alain GARDIENNET

I have problem to translate this : Ascomawand 20

22-09-2009 21:36

Stip Helleman Stip Helleman

Bonne nuit, has anybody a idea about this thing,

22-09-2009 12:17

Michel RIMBAUD

Hello. Found on decayed wood of Betula. Disco dia

21-09-2009 11:24

Philippe Silar

Bonjour, nous sommes à la recherche d'une cultu

21-09-2009 09:29

Alain GARDIENNET Alain GARDIENNET

Bonjour, J'ai fait une récolte d'un Massarina

20-09-2009 15:51

Mireille Lenne

Bjr, Sous la bino j'avais pensé au genre Arniu

« < 1447 1448 1449 1450 1451 > »
Xylariaceous fungus on Salix branch
Enrique Rubio, 25-07-2013 18:49
Enrique RubioDear friends

Under a melanized thin, blackish, clypeoid pseudostroma they are these very small, roundish, glabrous, ostiolate perithecia up to 175 microns  in diameter. Single or in groups up to 18-20 confluent perithecia with ostioles that allways are not collectivelly erumpent. I have not seen a true stroma and the peritecia are not in valsoid configuration.

The fungus grew on a corticated branch of Salix lying on the wet ground periodically covered by the fresh water of a lake, together with Lophiostoma appendiculatum. 

The asci are shortly stipitate, up to 90 x 7 (pars sporifera up to 70), 8-spored, with an apical apparatus deeply blue in IKI and Melzer. The brownish fresh ascospores have a conspicuous sigmoid and oblique germ slit; appendages or slimy sheath are absent.

With the keys on Xylariaceous fungi I arrive to the genus Anthostomella but I don't know a good species that fits with my collection


What do you think?

Thanks again
  • message #24529
  • message #24529
  • message #24529
  • message #24529
  • message #24529
Alain GARDIENNET, 29-07-2013 09:59
Alain GARDIENNET
Re : Xylariaceous fungus on Salix branch
A Lopadostoma species ?
Enrique Rubio, 29-07-2013 12:47
Enrique Rubio
Re : Xylariaceous fungus on Salix branch
It is another possibility but the perithecia are not in valsoid disposition and the stroma is very much rudimentary.

Thanks Alain