Accès membres

Mot de passe perdu? S'inscrire

01-03-2026 14:10

Peziza varia complex?
Antonio Couceiro Antonio Couceiro

Hola, me gustaria conocer opiniones sobre este tem

01-03-2026 20:34

Velutinus
Hans-Otto Baral Hans-Otto Baral

Does someone have access to Phytotaxa? I am intere

28-02-2026 11:05

Peziza
Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

01-03-2026 18:46

Lichenicolous myxomycete on Lopadium
Robin Isaksson Robin Isaksson

Hi! This species i se from time to time in the

01-03-2026 08:55

Capronia normandiniae paper
Michel Hairaud Michel Hairaud

Bonjour , Je souhaiterais recevoir cet article :Â

01-03-2026 15:31

White apothecia on Homalothecium lutescens
Csaba Németh Csaba Németh

Hello!I found these apothecia on Homalothecium lue

01-03-2026 18:02

unidentified Helotiales on a leaf
Francois Guay Francois Guay

I found this mystery Helotiales on an incubated le

01-03-2026 17:51

minuscule espèce fimicole
Bruno Coué Bruno Coué

Bonjour,sur vieilles crottes de sanglier en chambr

27-02-2026 17:51

Parasite de Evernia prunastri
Michel Hairaud Michel Hairaud

Bonjour, Quelqu'un peut il me donner un conseil p

24-02-2026 00:21

Pezizale
Benoît Segerer

Hello,I'm new to this forum, I hope I won't be irr

« < 1 2 3 4 5 > »
Coprophilous Bionectriaceae?
Björn Wergen, 05-02-2013 14:33
Björn WergenHi there,

I have recently found another small pyrenomycete growing on dung of a dung pile, precisely on dead grass culms which are embedded in that dung. It has very small fruitbodies from about 0,08 mm diameter and some rigid hairs, which are 35-45µm long. Spores are 8-9x2,-3,2µm, with one central septation when mature, hyaline, smooth. Asci with 8 spores (uni/biseriate), 50-65x6-8µm, IKI -, but with visible apical apparatus. Paraphyses not seen. Wall 6-10mm thick, consisting of small polygonal cells, redbrown.

Any idea? I thought about a Bionectriaceae, but I did not find any matching species.

regards,
björn
  • message #21703
  • message #21703
  • message #21703
  • message #21703
  • message #21703
  • message #21703
Björn Wergen, 05-02-2013 21:03
Björn Wergen
Re : Coprophilous Bionectriaceae?
Probably a member of Niesslia is also possible...

By the way: does anybody know about a key for that genus? I am looking for it but without success.
Alain GARDIENNET, 05-02-2013 22:35
Alain GARDIENNET
Re : Coprophilous Bionectriaceae?
Hi Björn,
Did you test KOH ? It recalls me some Nectriella. Niesslia are darker (brown to black).

Alain
Björn Wergen, 06-02-2013 00:12
Björn Wergen
Re : Coprophilous Bionectriaceae?
Hi Alain,

what does KOH do with Nectriella? I will test this tomorrow.

regards björn
Alain GARDIENNET, 06-02-2013 08:00
Alain GARDIENNET
Re : Coprophilous Bionectriaceae?
Nectriella is (as a Bionectriaceae) KOH -. A positive reaction would signify that is Nectriaceae.
Your one seems to be closed to species like N. dakotensis.
Alain
Björn Wergen, 06-02-2013 21:50
Björn Wergen
Re : Coprophilous Bionectriaceae?
Hi Alain,

I have read the article about Hypocreales (Rossman et al., Studies in Mycology 42) and after using the key, I think this should really be N. dakotensis. This is quiet interesting.

Of course I will test KOH too.

Thanks again, Alain.

regards,
björn