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20-08-2012 21:31

Bernard Declercq Bernard Declercq

Hi,A friend of mine sent me a collection on decort

27-08-2012 11:48

Alessio Pierotti Alessio Pierotti

According Mycobank some Polystigma, such as P. tru

26-08-2012 20:46

Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour.Trouvé dans un ruisseau, sur bois mort à

20-04-2012 18:26

Gernot Friebes

Hi, I have never found E. cerviculata so I would a

24-04-2012 11:54

Romain Penz

Bonjour,Je suis un mycologue amateur plutôt orien

21-08-2012 22:09

Nedim Jukic Nedim Jukic

Hello, I have problem identifying this finding, ev

22-08-2012 23:01

Bometon Javier Bometon Javier

Fructificaciones de aproximadamente 10mm,  un poc

22-08-2012 15:52

Alain GARDIENNET Alain GARDIENNET

Bonjour, Dans des tiges de Typha angustifolia, au

22-08-2012 21:00

Marja Pennanen

Hi,I did not manage to determine these hairy cups

20-08-2012 21:57

Michel Hairaud Michel Hairaud

Bonsoir . Hi to all. Pourriez vous me confirmer q

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Dothideomycetes
Bernard Declercq, 20-08-2012 21:31
Bernard DeclercqHi,

A friend of mine sent me a collection on decorticated branch of Quercus rubra.
Ascomata superficial, crowded, +/- globose, 0,3-0,4(0,45) mm diam., rugose, with umbilicate ostiolum, black.?
Asci bitunicate, cyl-clav., with tapering stalk, 8-sp., sp. 2-ser.,  102-112x10-11,5 µm, arising from croziers.
Spores fusiform with pointed ends, smooth, first hyaline, 1-septate and with 3(4) axially aligned LB's per cell, finally pale greyish brown ,3-septate and eguttulate, strongly constricted at the median septum, 21,5-26x4,5-6 µm.
Interascal filaments inconspicuous, septate.

?Who can help me? Thanks in advance.


Bernard


 

  • message #19494
  • message #19494
  • message #19494
  • message #19494
Bernard Declercq, 28-08-2012 11:59
Bernard Declercq
Re : Dothideomycetes
Hi,

The spores made me think from the very beginning on those of Pseudotrichia minor Munk, while the ascomata are very Cucurbitaria-like.
I only know P. minor as an immersed parasite on Amphiporthe leiphaemia.
What is your opinion on my guess?

Bernard