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17-03-2026 10:09

François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

17-03-2026 10:40

Martine  Vandeplanque Martine Vandeplanque

Bonjour à tous.Chaque année en mars ou avril, il

12-03-2026 19:44

Enrique Rubio Enrique Rubio

Hi to everybody.Can you give me any suggestions ab

05-03-2026 10:07

Hulda Caroline Holte

Hello, I found and collected this species growing

12-03-2026 15:45

Åge Oterhals

Dear forum,I found this small discomycete on a ver

12-03-2026 16:17

Sylvie Le Goff

Bonjour à tousRécolté dans le 22 en France (ré

11-03-2026 17:36

Michel Hairaud Michel Hairaud

Bonjour, Je cherche des indices  pour cette réc

14-03-2026 13:51

Thierry Blondelle Thierry Blondelle

Hi everybody Under Quercus ilex, i hesitate to na

08-03-2026 14:05

Thierry Blondelle Thierry Blondelle

Bonjour à tous,Sur 3 récoltes supposées de H. l

12-03-2026 14:37

David Wasilewski

These small ascomycota (1-3 mm) ere observed growi

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Lasiosphaeria-like
Gernot Friebes, 02-02-2015 13:37
Hi,

I would need your help with this Lasiosphaeria-like species that grows on a decorticated piece of Picea wood. I looked through the literature but couldn't find a species with the combination of brown, non-tapering ascospores with up to 7 septa and sulcate ostioles. Here's a short description by the person who collected this species (and took the photos):

Asci biseriate, without or only with weakly developed(?) subapical globulus. Ascospores brown (already inside the ascus), ca. (60)70-72 x 8 µm, bent in the lower third, with up to 7 septa, germinating when old. Setae dark brown, thick-walled.

Thank you and best wishes,
Gernot
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Jacques Fournier, 02-02-2015 14:00
Jacques Fournier
Re : Lasiosphaeria-like
Hi Gernot,
I think it belongs to the Lasiosphaeris hirsuta complex. With such a stout conical and sulcate neck, it used to be called L. tuberculosa but the morphological traits largely overlap between the four species involved and for the moment there is no molecular support to merge or segregate them. Unless Andrew has new information?
Cheers,
Jacques
Gernot Friebes, 02-02-2015 14:41
Re : Lasiosphaeria-like
Hi Jacques,


thanks! I have seen quite a few collections of L. hirsuta agg. but never with such a sulcate neck like in this find, hence why I didn't make the connection. The ascospores clearly fit the L. hirsuta complex well!

Best wishes,
Gernot
Andrew N. Miller, 02-02-2015 15:33
Andrew N. Miller
Re : Lasiosphaeria-like
Unfortunately, there is a wide range of morphological variation within the 8 species that occur in the L. hirsuta species complex.  This morphology overlaps among species making it difficult to distinguish species based on morphology alone.  Not what taxonomists like to hear...

Andy