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05-11-2025 11:33

Cladosporium ?
Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Hymenoscyphus on blueberry.
Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Protounguicularia transiens?
Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 14:53

Ophiobolus?
Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

03-11-2025 21:34

Tatraea sp. ? on Populus tremula
Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

Ascomycetes
David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Bright orange stalked asco
Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hymenoscyphus phiala
Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Telogalla olivieri
Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Rutstroemia firma
Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

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unknown asco on wood
Ethan Crenson, 29-03-2016 06:06
Tiny cup with thick dark hairs which cover the hymenium when dry.  They open when hydrated revealing the white/off-white hymenium, which can be a jelly-like mass.  Spores hyaline, slightly curved and some are 5-septate.  Hairs are brown and thick-walled under the scope and non-septate.  Spores measure around 8-13?m by 1.5-2?m.  That's about all I know.  Any assistance would be appreciated.  Thanks!
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Gernot Friebes, 29-03-2016 16:42
Re : unknown asco on wood
Hi Ethan,

probably something like Pseudolachnea/Dinemasporium or some similar genus.

Best wishes,
Gernot
Ethan Crenson, 29-03-2016 17:27
Re : unknown asco on wood
Thank you Gernot!  That should get me started.
Dartanha Soares, 29-03-2016 21:46
Dartanha Soares
Re : unknown asco on wood
I agree with Gernot, that this is similar to Pseudolachnea/Dinemasporium/Pseudolachnella. Dinemasporium has spore not septate. Although you said that some spore have 5 septa, in your images I was able to see a single septum. Additionally, the spore size you provide didn't fit any Pseudolachnella species (which have multiseptate spores), but fits with Pseudolachnea hispidula, which is monotypic according to Nag Raj (1993).
Ethan Crenson, 30-03-2016 18:04
Re : unknown asco on wood
Dartanha, you are right.  There is only one septum.  I was mistaking the shadow made by oil droplets for septa.  Also I was able to get some more accurate spore measurements:  10-13?m by 1.5-2?m.  I think Pseudolachnea hispidula is it!
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