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12-11-2018 15:38

PASCAL DUBOC

Bonjour sur tige herbacée en milieu marécageux,

11-11-2018 13:43

BERNARD CLESSE BERNARD CLESSE

Bonjour à toutes et tous,Que pensez-vous de cet A

12-11-2018 15:56

Castillo Joseba Castillo Joseba

De esta mañana en suelo arenoso junto a pinar y c

11-11-2018 15:12

Castillo Joseba Castillo Joseba

Me mandan  esta muestra seca desde Galicia,   en

11-11-2018 19:33

Thorben Hülsewig

Hi there, today i found on stems of Eupatorium sp

08-10-2018 14:51

Edvin Johannesen Edvin Johannesen

I came across these dense mats of apothecia seated

11-11-2018 18:41

Nicolas VAN VOOREN Nicolas VAN VOOREN

Bonjour.Suite à la publication d'un article d'Eka

04-11-2018 12:06

Thorben Hülsewig

Hi there, two days ago i found this Hymenoscyphus

11-11-2018 14:33

Castillo Joseba Castillo Joseba

Me mandan esta muestra seca desde Galicia,   fue

08-11-2018 22:48

BERNARD CLESSE BERNARD CLESSE

Bonsoir à toutes et tous,Que pensez-vous de cet A

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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.