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01-05-2026 22:45

Thierry Blondelle Thierry Blondelle

Bonjour à tous, Une récolte sur bouse séchée d

28-04-2026 20:07

Lothar Krieglsteiner Lothar Krieglsteiner

... on twig in the air at standing Ceratonia siliq

14-04-2026 05:32

Ethan Crenson

Hi all, A few weeks back a friend pointed out som

28-04-2026 20:33

Vitus Schäfftlein

Hello, I found Trochila ilicina on Ilex aquifoliu

30-04-2026 10:43

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia, España, 

30-04-2026 10:28

Rot Bojan

Hello, by appearance I would say that I am dealing

27-04-2026 18:48

Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 20:52

Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

28-04-2026 22:51

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

29-04-2026 08:01

Lothar Krieglsteiner Lothar Krieglsteiner

... on twig attached to small tree of Citrus auran

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stream discomycete
Chris Yeates, 11-10-2013 17:11
Chris YeatesBonsoir tous
collected a couple of week ago, and although I have kept dried material I did not have a lot of time to examine this fresh, so I hope what I can show here is sufficient. This fungus was on a small branch which was mostly submerged in a local stream; it was fruiting above the water level, but the wood was totally saturated.
In the field I thought I might have a Apostemidium or similar but the spores immediately removed that possibility. All these photographs are in water and of living material. The spores showed mostly two clear drops, and the paraphyses had string-of-beads like VBs.
Ascospores measured 9.6-14.9 x 3.7-5µm
any suggestions welcome
cordialement
Chris
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Brian Douglas, 11-10-2013 19:33
Brian Douglas
Re : stream discomycete
Cudoniella clavus or similar?

I've collected something similar myself (though without good vital microscopy) from a long in a stream in Exeter, and when cultured and sequenced it turned out to belong to that group, closely related to a large number of morphologically diverse aquatic hyphomycete species.

My collection was only very minutely stipitate to sessile.  The paraphyses content would also fit with Zotto's illustrations (I think).

Hope that provides a starting point at least!

Cheers,

Brian

Hans-Otto Baral, 11-10-2013 19:50
Hans-Otto Baral
Re : stream discomycete
I agree with this idea. The spore width excludes H. vernus which may occur also in autumn, only H. imberbis might be possible. But the convex hymenium and the rather long spores fit clavus.

Did the apos have a very short stalk?

Zotto