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13-01-2026 18:55

Rees Cronce

Strossmayeria sp. on indet. decroticate hardwoodTh

13-01-2026 07:57

Danny Newman Danny Newman

cf. Bombardia on indet. decorticate woodAppalachia

11-01-2026 20:35

Josep Torres Josep Torres

Hello.A very tiny pyrenomycete sprouting sparsely

13-01-2026 10:13

Danny Newman Danny Newman

Cordieritidaceae sp. on indet. wood w/ Hypoxylon s

13-01-2026 07:28

Danny Newman Danny Newman

Chlorociboria glauca on indet. decorticate logThe

13-01-2026 07:14

Danny Newman Danny Newman

Neodasyscypha cerina on indet decorticate logThe S

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

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Asco from California, USA
Alan Rockefeller, 03-03-2017 11:58
Alan RockefellerWhat is this?    Under Quercus agrifolia in Oakland.   Size approx 2 - 3 cm diameter.

Spores smooth, inamyloid, 18 × 10 micrometers. Asci inamyloid and with a rounded apex.  Micrographs in Meltzer's.

  • message #47618
  • message #47618
  • message #47618
Viktorie Halasu, 03-03-2017 23:21
Viktorie Halasu
Re : Asco from California, USA
Hello,
that's an interesting discomycete. That stipe reminds me of Tarzetta, but if the spores really are without guttules, then my best guess is a Geopyxis. If you can check the ascus base, Tarzetta has simple septate base, Geopyxis has forked (pleurorhynchous) base.
Viktorie
Nicolas VAN VOOREN, 10-03-2017 00:02
Nicolas VAN VOOREN
Re : Asco from California, USA
Tarzetta species possess large guttules in their spores.
Consider also the genus Jafnea (especially J. semitosta) because your micrographs show immature ascospores, but the spore shape agrees.