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14-04-2026 05:32

Ethan Crenson

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

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

29-04-2026 10:44

Lothar Krieglsteiner Lothar Krieglsteiner

growing at moist, drying-out soil at the side of a

28-04-2026 20:33

Vitus Schäfftlein

Hello, I found Trochila ilicina on Ilex aquifoliu

28-04-2026 21:53

William Slosse William Slosse

Good evening everyone, Recently, in a wet forest,

28-04-2026 21:50

Pablo Sandoval Pablo Sandoval

Hola a todos,Espero se encuentren bien. Hace mucho

27-04-2026 18:05

Lothar Krieglsteiner Lothar Krieglsteiner

... still attached at standing tree. The green con

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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