Accès membres

Mot de passe perdu? S'inscrire

28-04-2026 22:51

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Pourriez-vous m'aider à

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

28-04-2026 20:33

Vitus Schäfftlein

Hello, I found Trochila ilicina on Ilex aquifoliu

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

27-04-2026 18:48

Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 17:41

Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, same leaf than the last post. The con

27-04-2026 17:16

Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, moist lying.The conidiomata look like

« < 1 2 3 4 5 > »
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.