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21-05-2025 17:28

éric ROMERO éric ROMERO

Bonjour Tous, Avec la bonne fiche cette fois (mer

19-05-2025 09:42

Josep Torres Josep Torres

Hello.An ascomycete photographed on April 20, spro

21-05-2025 08:31

Josep Torres Josep Torres

Reddish-brown, grain-like ascomata, measuring 0.7â

20-05-2025 09:37

Josep Torres Josep Torres

Hello, an anamorph photographed last April 20th, s

20-05-2025 22:15

Francois Guay Francois Guay

I found this ascomycete at the base of a dead fern

20-05-2025 21:36

Francois Guay Francois Guay

I found this Mollisia sp. on a submerged herbaceou

20-05-2025 10:31

Castillo Joseba Castillo Joseba

me mandan elmaterial seco de Galicia, (España) 

16-05-2025 05:47

Francois Guay Francois Guay

I found this super tiny hyaline asco on fir needle

11-05-2025 10:22

Karl Soler Kinnerbäck

Found on moist Betula wood dipped in freshwater st

18-05-2025 16:49

François Bartholomeeusen

Dear forum members,On cow dung, between fruiting b

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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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