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24-06-2022 01:57

Stefan Jakobsson

Every week I find Lachnum species not matching any

15-06-2022 20:06

Rubén Martínez-Gil Rubén Martínez-Gil

Hola a todos.Subo unas fotos de un Ascobolus que e

23-06-2022 09:33

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello.I'm searching for the following paper:Dissin

22-06-2022 09:48

Josep Torres Josep Torres

Hola.Un supuesto hongo parasitando una hoja de Vit

22-06-2022 18:34

Juuso Äikäs

These tiny black pyrenos were growing on the under

23-12-2015 09:06

Man Myco Man Myco

Hi,I founded this species on a piece of (I think -

11-11-2018 15:12

Castillo Joseba Castillo Joseba

Me mandan  esta muestra seca desde Galicia,   en

21-06-2022 16:16

Andgelo Mombert Andgelo Mombert

Bonjour, Un Ascobolus sur sphaigne, en tourbière

20-06-2022 22:08

Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,Auriez-vous un avis sur

21-06-2022 19:25

ruiz Jose

Hola en madera desconocida,en bosque de ribera,con

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Lachnum on Alnus
Stefan Jakobsson, 24-06-2022 01:57
Every week I find Lachnum species not matching anything for which I can find a name. Here one more on a stick of Alnus(?).

The apos are up to 1.5 mm wide and the stipe equally long, disk light ochre, drying to deeper ochre without reddening.


The hairs are mostly capitate, not with typical oxalate crystals but often partly covered with something more amorphous, often agglutinated by the apex, 67-78.4 × 6.8-8.4 µm, no VBs observed.


Asci with croziers, 50-60 × 4.0-5.0 µm, IKI+. The spores are 9.2-11.4 × 1.8- 2.2 µm. The paraphyses protrude 15-25 µm, width 4.3-5.6 µm, with a few VBs disappearing very easily.


Does this one ring any bells, anyone? I don't think it is L. fasciculare.

  • message #73119
  • message #73119
  • message #73119
Hans-Otto Baral, 24-06-2022 08:34
Hans-Otto Baral
Re : Lachnum on Alnus
Good docu and observations! I think this is L. subvirgineum (nom. prov.). Earlier probably confused with L. virgineum. I also think that VBs are absent.
Stefan Jakobsson, 24-06-2022 12:52
Re : Lachnum on Alnus
Yes, of course! Compared to my previous collections this one has slightly shorter hairs and guttules in the paraphyses (quite strongly refractive). Thank you!