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05-11-2025 11:33

Pierre Repellin

Bonjpur,J'ai trouvé, sur une hampe florale d'Alli

04-11-2025 09:07

Josep Torres Josep Torres

Hello.A suspected Hymenoscyphus sprouting on a thi

04-11-2025 12:43

Edvin Johannesen Edvin Johannesen

Hi! One more found on old Populus tremula log in O

04-11-2025 14:53

Josep Torres Josep Torres

Hello.Very small, globose, mucronate perithecia, b

03-11-2025 21:34

Edvin Johannesen Edvin Johannesen

These tiny (0.4-0.5 mm diam.), whitish, short-stip

03-11-2025 19:41

David Chapados David Chapados

Hi,Does anyone knows which genus could this be? G

28-10-2025 15:37

Carl Farmer

I'd be grateful for any suggestions for this strik

03-11-2025 16:30

Hans-Otto Baral Hans-Otto Baral

Hello I want to ask you if you have found this ye

01-11-2025 09:14

Francis Maggi

Bonjour,Trouvé sur Xanthoria parietina à Valdebl

28-10-2025 19:33

Nicolas Suberbielle Nicolas Suberbielle

Bonjour à tous,Je voudrais votre avis sur cette r

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Brown Hyphomycete
Peter Thompson, 07-11-2018 11:47
Hello Everyone,

I have found a colony of brown hyphomycetes growing on a dead branch of Corylus avellana.

They have mid- to dark brown, regularly septate conidiophores, about 8 um wide, with short branches below the tip.

The mature conidia are brown, mostly 4-septate, hardly constricted at the septa, with a scar 4 um wide at the base. They typically measure 57.5 - 60 x 13 - 14 um. Immature conidia appear to have bluish tints.

It seems that Martin Ellis did not encounter this species, as there is no description / illustration in his books.

I attach a photo and wonder if anyone has an idea as to what they might be.

Thank You,
Peter Thompson.

  • message #55092
Josiane Santana Monteiro, 07-11-2018 13:21
Re : Brown Hyphomycete
Hello Peter

This hyphomycetes seems with some species of Dendryphiopsis.

Regards
Josiane Monteiro
Peter Thompson, 07-11-2018 15:13
Re : Brown Hyphomycete
Hello Josiane Monteiro,

Thank you for your help with the likely genus for my hyphomycete sample.

I will look more deeply into the species. Some like Dendryphiopsis biseptata can be quickly eliminated.

Interestingly, images of Dendryphiopsis atra are showing the same bluish tints in their young conidia.

With Best Wishes,
Peter.