Accès membres

Mot de passe perdu? S'inscrire

13-01-2026 10:13

Danny Newman Danny Newman

Cordieritidaceae sp. on indet. wood w/ Hypoxylon s

13-01-2026 07:14

Danny Newman Danny Newman

Neodasyscypha cerina on indet decorticate logThe S

13-01-2026 07:28

Danny Newman Danny Newman

Chlorociboria glauca on indet. decorticate logThe

13-01-2026 09:10

Danny Newman Danny Newman

Dasyscyphella chrysotexta on indet. decorticate ha

13-01-2026 08:43

Danny Newman Danny Newman

Tricladium varicosporioides on indet. decorticate

13-01-2026 08:49

Danny Newman Danny Newman

Coccomyces sp. on fallen Rhododendron leavesPretty

12-01-2026 22:02

Ethan Crenson

Hello all, I am hoping someone will have some ins

13-01-2026 07:57

Danny Newman Danny Newman

cf. Bombardia on indet. decorticate woodAppalachia

13-01-2026 07:51

Danny Newman Danny Newman

Atrocalyx sp. on indet. herbaceous stemAppalachian

11-01-2026 20:35

Josep Torres Josep Torres

Hello.A very tiny pyrenomycete sprouting sparsely

« < 1 2 3 4 5 > »
Didymosphaeriaceae (?) on Ulmus branch
Enrique Rubio, 08-02-2017 20:38
Enrique RubioHi again
I have found on fallen branches broken by the wind, these small (500-870 microns high, up to 100 microns broad), pyriform, subepidermial or inmersed on the wood, somewhat glabrous pseudothecia, solitary or arranged in fused groups, on Ulmus minor. The fungus seems to be xerophilous, because only the fall of the branches allowed me to see it.
The asci I think are not unitunicate, although that is not easy for me, with a variable numeber of ascospores (often 8). Pseudoparaphyses narrowly trabeculate. Ascospores yellowish, brownish, brownish-black, uniseptate (secondarily septate at maturity), heteromorphic, with clearly longitudinaly striate walls, sometimes sub-reticulate. Pseudothecial inner walls with hyaline prismatic or roundish cells.
I think could be near to Didymosphaeria, because the pseudothecia are not arranged in Valsoid-type as in the Valsariales.
Have you some idea for me?
Many thanks again
  • message #47102
  • message #47102
  • message #47102
  • message #47102
Paul LEROY, 08-02-2017 22:41
Re : Didymosphaeriaceae (?) on Ulmus branch
Salut Enrique,

A moins d'une révision plus récente que la documentation en ma possession, ce spécimen semble convenir pour Didymosphaeria massarioides Saccardo & Bruneau.
Paul
Enrique Rubio, 09-02-2017 00:44
Enrique Rubio
Re : Didymosphaeriaceae (?) on Ulmus branch
Bonsoir Paul
Je pense que tu as la raison, et qui mon champi semble convenir avec ce nom
Merci beaucoup par ton amicale aide