17-12-2025 18:35
Michel Hairaud
Bonjour à tous/Hi to everyone I am passing along
15-12-2025 15:48
Danny Newman
Melanospora cf. lagenaria on old, rotting, fallen
15-12-2025 15:54
Johan Boonefaes
Unknown anamorph found on the ground in coastal sa
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Hardware Tony
Small clavate hairs, negative croziers and IKI bb
15-12-2025 07:09
Danny Newman
indet. Rutstroemiaceae sp. on unk. fallen leavesMc
15-12-2025 07:05
Danny Newman
Pseudosclerococcum golindoi (det: Zotto)near Cosb
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Danny Newman
ITS sequences from the following two collections B
15-12-2025 12:34
Danny Newman
indet. Rhytismataceae on oak leafnear Purchase Roa
Strange tar spots on Betula
Steffen Lorenz,
27-07-2015 22:57
does anyone have an idea what species these black spots could be?
It is only a mass of conidia. When fresh, it was a convex structure, some flowed together. The texture was watery and stained the fingers. When dry it is a thin, powdery coating.
Conidia: 11,5-18 x 8,5-10 µm, elliptical greyish-brownish, nonseptate, thick-walled, multiguttulate, with conspicuous porus
Porus: 1,5-2 x 0,5-1 µm
Substrate: dead branches of Betula pendula lying on the ground
Best regards
Steffen
Gernot Friebes,
27-07-2015 23:08
Re : Strange tar spots on Betula
Hi Steffen,
I'd suggest Melanconis stilbostoma.
Best wishes,
Gernot
I'd suggest Melanconis stilbostoma.
Best wishes,
Gernot
Steffen Lorenz,
28-07-2015 00:00
Re : Strange tar spots on Betula
Hello Gernot,
comparing the description of Ellis & Ellis I am sure you are right. Thanks Gernot.
Regards
Steffen
comparing the description of Ellis & Ellis I am sure you are right. Thanks Gernot.
Regards
Steffen

