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02-08-2025 12:35

éric ROMERO éric ROMERO

Bonjour tous, J'ai trouvé sur pétiole de Fraxin

02-08-2025 17:21

Andgelo Mombert Andgelo Mombert

Bonjour,Je recherche la description et la planche

30-07-2025 20:52

Bohan Jia

Hi together,  I've been looking posts in AscoFra

30-07-2025 10:12

Bernard CLESSE Bernard CLESSE

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

31-07-2025 16:32

Andreas Gminder Andreas Gminder

Dear collegues,today I found on a very fresh fire

30-07-2025 18:06

Stefan Jakobsson

On a decorticated twig of Alnus incana on moist so

29-07-2025 18:59

Castillo Joseba Castillo Joseba

Me mandan el  material seco de Galicia, España,

28-07-2025 12:34

Enrique Rubio Enrique Rubio

Hi to everybody.I would appreciate any ideas about

28-07-2025 04:59

Richard Droker

Growing on resin (over moss on Tsuga heterophyll)l

13-06-2025 09:41

Josep Torres Josep Torres

Hello.A cerebriform ascomycete sprouting scattered

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Chaetomium spinosum?
Marc Detollenaere, 05-02-2018 22:40
Marc Detollenaere

Hello everybody,


 


On dung of rabbit I found two Chaetomium with straight septate hairs , densely encrusted, 170-240µ long, pale gray.Terminal hairs not branched or arcuate.The spores measured 7x6µ , they were broadly ovoidal, some of them were limoniform. The rather indistinct germ pore was situated apically. Peridium was of textura angularis with cells of about 10µ.


The key in Doveri, Ascomycete.org,8(1), 2016 brought me to Chaetomium spinosum.


Could someone confirm these findings?


 

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Michel Delpont, 06-02-2018 12:08
Michel Delpont
Re : Chaetomium spinosum?
Hello Marc.

Have you been able to observe the shape of the asci? Also an ostiole as well as the reaction of spores in the Melzer?

Michel.
Marc Detollenaere, 06-02-2018 19:36
Marc Detollenaere
Re : Chaetomium spinosum?

Good evening Michel,


The fruit body was rather ampulliform without long neck, 320x150µ, no dark collar round ostiole. The asci were irregularly biseriate, about 35x8µ, clavate, long-stalked and 8-spored. Spores became slightly amyloid in Melzer.


 


Marc

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