02-12-2025 18:59
Malcolm Greaves
This pair of ascos 2.5cm across were on recently b
02-12-2025 19:25
Buckwheat PeteHello, can anyone identify this hairy fungus growi
30-11-2025 12:53
Edvin Johannesen
White short-stipitate apothecia found on thin twig
30-11-2025 10:47
William Slosse
I recently found a collection of small Peziza sp.
27-11-2025 12:01
Thomas Læssøehttps://svampe.databasen.org/observations/10496727
27-11-2025 11:46
Thomas Læssøehttps://svampe.databasen.org/observations/10493918
Dothideomycetes
Bernard Declercq,
20-08-2012 21:31
Hi,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
Bernard Declercq,
28-08-2012 11:59
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
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