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16-01-2026 00:45

Ethan Crenson

Hi all, On decorticated hardwood from a New York

10-01-2026 20:00

Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

13-01-2026 07:28

Danny Newman Danny Newman

Chlorociboria glauca on indet. decorticate logThe

08-12-2025 17:37

Lothar Krieglsteiner Lothar Krieglsteiner

20.6.25, on branch of Abies infected and thickened

15-01-2026 15:55

Lothar Krieglsteiner Lothar Krieglsteiner

this one is especially interesting for me because

15-01-2026 10:35

Johan Boonefaes Johan Boonefaes

Last week I found this fungus, possibly a hyphomyc

13-01-2026 08:43

Danny Newman Danny Newman

Tricladium varicosporioides on indet. decorticate

07-01-2026 22:22

Danny Newman Danny Newman

Tatraea sp. on indet. hardwood The Swag, Great Sm

13-01-2026 09:10

Danny Newman Danny Newman

Dasyscyphella chrysotexta on indet. decorticate ha

13-01-2026 10:13

Danny Newman Danny Newman

Cordieritidaceae sp. on indet. wood w/ Hypoxylon s

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Dothideomycetes
Bernard Declercq, 06-03-2014 09:53
Bernard DeclercqHi to all,

I need your help for the determination of an old collection on a corticated branch of Prunus serotina:
Ascomata immersed, about 0,5 mm diam., in small groups, with elongated collectively erumpent beaks. Asci bitunicate, cylindrical, 8-spored, spores uniseriate, 130-150x10-12 µm. Spores ellipsoid, 15-21x7-10,5 µm, with (2)3(5) traverse septa and 1-3 segments with a diagonal septum, guttulate, smooth, pale olivaceous brown but with dark brown septa.
Your suggestions are welcome.

Bernard
  • message #28080
Björn Wergen, 06-03-2014 11:52
Björn Wergen
Re : Dothideomycetes
Hi Bernard,

this is Dyrithium lividum (in ascofrance, look also at Thyridium lividum).

regards,
björn
Bernard Declercq, 06-03-2014 19:09
Bernard Declercq
Re : Dothideomycetes
Vielen Dank, Björn.

Bernard