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30-06-2025 06:57

Ethan Crenson

Hi all, Another find by a friend yesterday in Bro

29-06-2025 18:11

Ethan Crenson

Hello all, A friend found this disco yesterday in

28-06-2025 17:10

Peter Welt Peter Welt

I'm looking for: RANALLI, M.E., GAMUNDÍ, I.J. 19

28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

27-06-2025 14:09

Åge Oterhals

I found this pyrenomycetous fungi in mountain area

26-06-2025 17:53

Angel Pintos Angel Pintos

Does anyone have the following paperMycocaliciacea

11-06-2025 16:26

Jason Karakehian Jason Karakehian

Hi everyone, I am looking for the following protol

23-06-2025 13:25

Enrique Rubio Enrique Rubio

I would like to hear your opinion on this Scutelli

25-06-2025 16:56

Philippe PELLICIER

Bonjour, pensez-vous que S. ceijpii soit le nom co

25-06-2025 16:25

Thomas Flammer

My first impression was sth like Rutstromeia, but

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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