22-04-2026 20:17
Marian Jagers
Is anyone familiar with the Hyphomycetes genus Pse
22-04-2026 20:54
Enrique Rubio
Hi to everybody.This Pyrenopeziza grew in moist le
22-04-2026 01:06
Richard VALERI
Bonjour à tous.Je vous présente cette Nectria s.
21-04-2026 13:36
Gernot FriebesHi,I am out of ideas for this one. I collected Sal
21-04-2026 13:19
Gernot FriebesHi,this Lophodermium on Typha has ascospores measu
21-04-2026 13:05
Gernot FriebesHi,this hyphomycete feels familiar but I was not a
20-04-2026 22:00
Malcolm Greaves
These pale yellow, hairy ascos were growing on cul
Densely Grouped Black Ascomycete on Decorticated Wood
Peter Thompson,
18-03-2017 12:20
I have been considering a black ascomycete which grows densely grouped on a decorticated branch of Acer pseudoplatanus. The fruit bodies resemble those of Bertia moriformis, but smaller and with central ostioles. I can not find a suitable genus for the characteristics observed.
The spores are initially hyaline, 4- 6-guttulate, 1-septate and significantly constricted there. Later, they become 3-septate and yellowish brown, without guttules. Their sizes range from 22.5 - 27.5 x 5.5 - 6.0 um.
The 8-spored asci contain two rows of spores and their tips bule faintly in Melzers.
There are no hairs.
I have attached a photo of the fruit bodies, plus images of the spores, asci, excipulum and ostiole.
I wonder if anyone has any ideas?
Thank You,
Peter Thompson.
