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11-06-2026 16:24

Ethan Crenson

Hi all, Recently, a friend found this Orbilia in

11-06-2026 19:01

William Slosse William Slosse

Hello all,In an attempt to make a culture of a sus

10-06-2026 21:16

François Freléchoux François Freléchoux

Bonsoir,Le dernier du jour, en attendant votre avi

11-06-2026 19:03

Nicolas VAN VOOREN Nicolas VAN VOOREN

Chers membres d'Ascofrance,Le site sera placé en

10-06-2026 23:08

éric ROMERO éric ROMERO

Bonjour tous, Je vous propose un Mollisia trouvé

09-06-2026 18:32

Camille Mertens

Sur morceau de roseau immergé 0,5 - 0,7 mm de dia

10-06-2026 12:54

Steve Clements

Bonjour encore, Pouvez-vous m'aider, s'il vous pl

10-06-2026 21:07

François Freléchoux François Freléchoux

Toutes les tiges de gentianes jaunes de l'an passÃ

10-06-2026 13:41

François Freléchoux François Freléchoux

Bonjour à nouveau, Voici une trouvaille d'hier.

10-06-2026 11:53

Steve Clements

Bonjour, This disco is abundant on dead stems of

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Orbilia
Ethan Crenson, 11-06-2026 16:24
Hi all,

Recently, a friend found this Orbilia in a New York City park. I am out of town, with spotty internet, so I don't have access to my literature—namely Zotto's crucial monograph.


If I recall correctly, this couldn't be the very common Orbilia xanthostigma even though it has c-shaped spores. The spores here are smooth, without any knobs on the outer surface. Also, there are no orange pigments in the paraphyses.


This collection was found on well-rotted wood of an unknown hardwood lying on the ground. The apothecia are pale, some with a rosy hue, a few somewhat orange.


Spores, C-shaped with plug-like spore body.
2.3-3.4 x 0.9-1.3µm
Me: 2.9 x 1.0µm


Asci
25.8-28.9 x 3.1-3.8µm


Paraphyses
Usually capitate, with VBs, 21.3-26.9 x 2.6-3.7µm


Can this be Orbilia leucostigma? I cannot remember if that species has smooth spores and VBs.


Thanks!


Ethan

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Hans-Otto Baral, 11-06-2026 21:49
Re : Orbilia
Hi Ethan

the spores on your micrograph look partly warted, is it an artifact?

The SBs are typical of leucostigma. Yes, I think it is the American leucostigma. Perhaps genetically different from Europe.

A sequence would surely be interesting.

Zotto