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11-05-2026 12:32

Bernard CLESSE Bernard CLESSE

Pourriez-vous m'aider à identifier cette héloti

13-05-2026 15:26

François Freléchoux François Freléchoux

Bonjour,Voici une récolte faite il y a quelques j

12-05-2026 15:41

Nicolas VAN VOOREN Nicolas VAN VOOREN

Dear Ascolovers, especially interested in Pezizale

13-05-2026 12:05

Thierry Blondelle Thierry Blondelle

Bonjour à tous,J'aimerais avoir confirmation de c

10-05-2026 23:17

Andreas Gminder Andreas Gminder

Hello,today we found in a moist steep decidous for

28-04-2026 20:07

Lothar Krieglsteiner Lothar Krieglsteiner

... on twig in the air at standing Ceratonia siliq

27-04-2026 20:52

Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

11-05-2026 20:22

Lothar Krieglsteiner Lothar Krieglsteiner

on attached twig of standing Ficus caricaquite uns

11-05-2026 13:22

Sylvie Le Goff

BonjourPuis avoir votre avis sur cet ascome, je vo

29-04-2026 10:44

Lothar Krieglsteiner Lothar Krieglsteiner

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

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Lachnum-like fungus
Nicolas VAN VOOREN, 14-05-2017 19:36
Nicolas VAN VOORENHere is a collection (unfortunately not in a very good condition) of a small Lachnum-like fungus, growing on a small piece of wood (maybe Salix), near a pond.
The apothecia are very small, 0.2-0.5 mm, and stipite, totally white. Crystals are abundant on the ectal excipulum.
Asci are IKI+ (bb) and seem to be aporynchous. Paraphyses are lanceolate, protuding the asci.
Hairs are roundish at the top, measure 55-65 × 3-4 µm, with a refractive content, and also with a amorphous matter at the top. Ascospores are narrow fusoid, elongated, 15-21 (22.5) × 1.1-1.8 µm, OCI ~2-3.

At first sight, I thought it was a Lachnum or Dayscyphella species, but this type of hairs doesn't remind me any species in these genera.
Any suggestion?
  • message #48834
  • message #48834
  • message #48834
Hans-Otto Baral, 14-05-2017 20:37
Hans-Otto Baral
Re : Lachnum-like fungus
Hi Nicolas
such large ascospores are unknown in Lachnum to my knowledge, although the hairs would in my opinion fit the genus. Since both hairs and spores are dead, it is very difficult to make up one's mind. With such spores the asci should also be extraordinarily large? No photo of the parapyses?

The figured apo looks to me larger than 0.5 mm judging from the hair length, maybe because of squasing.

Zotto
Nicolas VAN VOOREN, 14-05-2017 20:49
Nicolas VAN VOOREN
Re : Lachnum-like fungus
I saw that Lachnum schoenoplecti have such large spores, but it doesn't grow on wood.
Hans-Otto Baral, 14-05-2017 21:01
Hans-Otto Baral
Re : Lachnum-like fungus
Yes, on grasses exist several species with such a spore size.