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24-03-2024 08:27

Thierry Blondelle Thierry Blondelle

HiOn Hedera helix fallen branchEcological habitat:

26-04-2024 10:07

Mathias Hass Mathias Hass

Hello, Does anyone know what this is? Found on J

24-04-2024 21:54

éric ROMERO éric ROMERO

Bonjour, J'ai trouvé ce Lasiobolus sur laissées

23-04-2024 15:18

Lothar Krieglsteiner Lothar Krieglsteiner

... but likely a basidiomycete. I hope it is o.k.

23-04-2024 13:17

Edouard Evangelisti Edouard Evangelisti

Bonjour à tous, Je viens de récolter ce que je

23-04-2024 21:49

Ethan Crenson

Hello all, A friend recently found this orange as

22-04-2024 11:52

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I made a loan of a collection of Microstoma

11-01-2022 16:36

Jason Karakehian Jason Karakehian

Hi does anyone have a digital copy of Raitviir A (

22-04-2024 08:54

Rafael Cabral

Bonjour à toutes et tous, Quelqu'un pourrait-il

22-04-2024 20:38

Miguel Ãngel Ribes Miguel Ángel Ribes

Good afternoon.Does anyone know this anamorph?It g

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unknown chaetomium
Joop van der Lee, 13-11-2013 14:20
Joop van der LeeFound on horse dung also found on sheep dung in the same area.


Perithium is covered with non septated, non crustated, thickwalled  curled hairs 2.7u8-3.48 um wide

Upper part has rigid stiff and curled, septated thick walled hairs 4.27-5.22 um wide.

Asci: 8-spored, 42.39x11.24 um

Spores: lemon shaped, 8.51-9.38xs7.41-7.96x6.32-6.91 um

When young they have an olive-green colour. 

It also has a funnel to assist in releasing spores, when process is completed only the fruitbody with rigid non curling hairs remain.

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Norbert Heine, 13-11-2013 17:45
Norbert Heine
Re : unknown Chaetomium
Hello Joop,

species of the genus Chaetomium are difficult to determinate!
It needs a lot of literature like Arx et al - The Ascomycete Genus Chaetomium, 1986 or Doveri - An update on the genus Chaetomium, PdM 29, 2008.
And it needs a lot of experience and patience.

Even then the determination is not easy!

There are some species with nearly the same spore size and similar hairs!
Maybe that your species is Ch. crispatum, but Ch. convolutum is also an option.
The common Ch. bostrychodes has similar, but slightly smaller spores.

An updated world wide key you can find in the latest work by Francesco Doveri.

http://www.mycosphere.org/pdfs/MC4_4_No17.pdf

Best wishes

Norbert