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03-02-2026 20:44

Zetti Mario

When I first saw this white mould on an Agaricus s

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.. 20.7.25, in subarctic habital. The liverwort i

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On a barkless poplar branch, we found hairy discs

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Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

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Michel Hairaud Michel Hairaud

Bonjour, Cette hypocreale parasite en nombre les

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Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pour cette récolte de 2

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Nicolas Suberbielle Nicolas Suberbielle

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Bonjour tous, Récolté dans les Vosges le 22/10/

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Marc Detollenaere Marc Detollenaere

Dear Forum,On decorticated wood of Castanea,I foun

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Perithecia on Horse Dung
Malcolm Greaves, 28-11-2018 21:26
Malcolm  Greaves
This perethecia c.25mm was on horse dung. The only "spores" that I could find were these elongated septate and tapering ones 43 um long. The could be contamination from outside but if not they are fairly distinctive.

Can anyone help.

Thanks

Mal
  • message #55328
  • message #55328
  • message #55328
David Malloch, 02-12-2018 01:48
David Malloch
Re : Perithecia on Horse Dung
Hello Malcolm,

The perithecia (or cleistothecia) are probably not related to the two spores in your last photo. These are conidia of one of the nematode-trapping hyphomycetes, probably either Candelabrella or Monacrosporium. Both are now known to be anamorphs of Orbiliaceae.

David

Malcolm Greaves, 04-12-2018 11:43
Malcolm  Greaves
Re : Perithecia on Horse Dung
Thanks David

Looking at your suggestions and papers provided by Chris Yeates (thanks again Chris) the conidia look to be close to Dactylella probably heptameres.

Mal

No other cleistothecia have developed