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20-03-2026 12:53

Stefan Blaser

Hello everybody, In the field, from distance, my

20-10-2017 09:23

Garcia Susana

Este otro crecía en el mismo trocito de madera qu

20-03-2026 16:16

Edvin Johannesen Edvin Johannesen

These 0.5 mm diam. acervuli were breaking through

19-03-2026 19:34

Filip Fuljer Filip Fuljer

Hello everyone,a few days ago I collected this str

19-03-2026 18:25

William Slosse William Slosse

Good evening everyone, On 18/03/26 I found a few

17-03-2026 10:09

François Freléchoux François Freléchoux

Bonjour, Voici la description rapide d'un petit d

19-03-2026 15:58

Stefan Blaser

Hello everybody, I hope for some hints... Macro:

19-03-2026 17:50

Enrique Rubio Enrique Rubio

Hi to everybodyThese thiny, blackish pseudothecia

18-03-2026 13:09

Khomenko Igor Khomenko Igor

I recently examined Celtis occidentalis branches

17-03-2026 19:41

Bernard CLESSE Bernard CLESSE

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

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Arnium
Joop van der Lee, 08-03-2016 15:48
Joop van der LeeFound on rabbit dung.

No clear photo of the perithecia, this was completely embedded in the dung, no neck only a hole was visible.
No asci found.
Spores: 31.2-38.5x18.9-22.9 um, two cauda with a length of 41-61 um and a width at the base of 8.3-10.2 um.
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Norbert Heine, 08-03-2016 17:18
Norbert Heine
Re : Unknown arnium
Hello Joop,

it is difficult to say something without knowledge of perithecium and asci.
The usually inequilateral spores with gelatinous caudae arranged at the flattend side are typical for Arnium cervinum. Also the spore size fits very well.
I find this species mostly on cervine dung, but also on hare. Why not rabbit?

Closely is A. caballinum with larger ascospores and longitudinally striate caudae.

Regards
Norbert

Joop van der Lee, 08-03-2016 18:22
Joop van der Lee
Re : Unknown arnium
Vielen dank Norbert.