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25-01-2026 23:23

Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

06-02-2026 01:14

Tomaz Vucko Tomaz Vucko

Hello!How would you name this species? Most perith

04-08-2014 17:35

Leandro Sánchez Leandro Sánchez

Sur branche de feuillus, jusqu'à 22 mm diamètre,

05-02-2026 15:07

Vasileios Kaounas Vasileios Kaounas

Found on a fallen needle of Pinus halepensis, diam

05-02-2026 06:43

Stefan Blaser

Hello everybody, Any help on this one would be mu

18-08-2025 15:07

Lothar Krieglsteiner Lothar Krieglsteiner

.. 20.7.25, in subarctic habital. The liverwort i

02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

02-02-2026 14:55

Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

02-02-2026 14:33

Andgelo Mombert Andgelo Mombert

Bonjour,Sur le thalle de Peltigera praetextata, ne

31-01-2026 10:22

Michel Hairaud Michel Hairaud

Bonjour, Cette hypocreale parasite en nombre les

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Ascodesmis nigricans?
Chris Yeates, 09-06-2019 16:05
Chris Yeates
Bonjour tous

Although I have yet to spot the ascomata I have found three groups of eight spores in a mount. The substrate is the small droppings of young sheep in neutral grassland.

The distinctive ornamented ascospores led me to Ascodesmis, and, after consulting Le Gal and Doveri, I think almost certainly Ascodesmis nigricans based on:

Ascospore size - 10.9-12 x 8.9-9.4µm

Broadly elliptical ascospores - Qe = 1.2-1.3

Ascospore ornamentation - not forming a reticulum but formed of irregular warts often capitate/flat topped

As I have not collected an Ascodesmis to date, and as there are few UK records I would welcome any comments.

Amitiés

Chris
  • message #58086
  • message #58086
  • message #58086
Nicolas VAN VOOREN, 09-06-2019 16:16
Nicolas VAN VOOREN
Re : Ascodesmis nigricans?
Altough the size is in the low range, the shape and ornamentation lead to A. nigricans.
Michel Delpont, 09-06-2019 16:36
Michel Delpont
Re : Ascodesmis nigricans?
Pas de problème, c'est bien a mon avis A.nigricans ! Jolies photos !

Michel.
Chris Yeates, 09-06-2019 17:19
Chris Yeates
Re : Ascodesmis nigricans?
Merci Beaucoup Nicolas et Michel

Je viens de localiser la monographie de van Brummelen dans Persoonia 11: https://www.repository.naturalis.nl/document/569775 et ses images sont très utiles. Il est toujours bon de trouver quelque chose pour la première fois - surtout quand on ne s'y attend pas.

Cordialement

Chris