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11-01-2022 16:36

Jason Karakehian Jason Karakehian

Hi does anyone have a digital copy of Raitviir A (

20-05-2026 17:47

Margot en Geert Vullings

We found this Mollisia on dead Juncus stems mown l

22-05-2026 14:47

Gernot Friebes

Hi,superficial ascomata collected on bark of a liv

22-05-2026 14:44

Lothar Krieglsteiner Lothar Krieglsteiner

in unripe condition citrine yellow, then soon fadi

22-05-2026 13:29

Gernot Friebes

Hi,I am curious to hear your opinion on this mater

22-05-2026 10:59

Nicolas VAN VOOREN Nicolas VAN VOOREN

Trouvé sur Phragmites, ce que je pense être un L

20-05-2026 21:49

Margot en Geert Vullings

We found this Lachnum on Juncus stems mown last ye

21-05-2026 17:01

Pierre Repellin

Bonjour à toutes et à tous,Je recherche l'articl

20-05-2026 20:08

Andreas Millinger Andreas Millinger

Good evening,another quite distinctive find from M

20-05-2026 12:57

Ingo Ibelshäuser Ingo Ibelshäuser

Hello everybody, on decayed hardwood e.g. Quercus

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"Lasiosphaerioid"
Stefan Blaser, 19-03-2026 15:58
Hello everybody,

I hope for some hints...

Macro: Perithecia globose, black, glabrous, slightly tapered toward the ostiole, slightly furrowed around the ostiole, 0.4-0.6 mm in diameter. Perithecia always seated in a black mat (see below). 



Micro: Spores abruptly and strongly bent in the lower part, with a minute, rounded, hyaline appendage at the lower end, ca 1 µm long. Spores observed in Perithecia were always aseptate and hyaline, but (mostly overmature) Spores from Perithecial surroundings had 3 septa and were very slightly brownish. Spore size mostly 18-22 x (5)-6-8 µm (at the broadest part). Asci have a minute, inamyloid, refractive ring.


Black mat: This is a conidial stage with dark brown, fusiform conidia with a long, straight germ slight (as in Xylariaceae). I wonder if this actually belongs together with the Perithecial fungus?


Many thanks and best wishes,



Stefan

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Andrew N. Miller, 19-03-2026 16:19
Andrew N. Miller
Re : "Lasiosphaerioid"
Cercophora solaris

Andy
Stefan Blaser, 19-03-2026 17:49
Re : "Lasiosphaerioid"
Thanks a lot Andy! 

I was greatly misled with my "conidia"...

In the field, I collected it as possible Chaetosphaerella phaeostroma, at home I considered Ruzenia spermoides first and in the end I got nowhere...until now.

Obviously not all that common in Europe. By the way, I forgot to mention the substrate which was a lying branch of Populus.
Andrew N. Miller, 19-03-2026 18:10
Andrew N. Miller
Re : "Lasiosphaerioid"
You are welcome!   I am the world expert on these things... ;o)