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24-04-2026 03:16

Trinacrium robustum?
David Chapados David Chapados

Found while looking at something else from wood in

22-04-2026 20:54

Pyrenopeziza on monocot.
Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

22-04-2026 01:06

Neonectria ou thelonectria ?
Richard VALERI Richard VALERI

Bonjour à tous.Je vous présente cette Nectria s.

22-04-2026 20:17

Pseudaegerita spec.
Marian Jagers Marian Jagers

Is anyone familiar with the Hyphomycetes genus Pse

23-04-2026 06:46

Fungus sp
François Freléchoux François Freléchoux

Bonjour, Voici la description d'un minuscule asco

21-04-2026 22:14

Peziza
Margot en Geert Vullings

This cup fungus was found on April 10, 2026, on lo

22-04-2026 19:12

Poilu, violet avec KOH
Louis DENY

Bonjour forum.Trouvé à Belfort, est de la France

21-04-2026 21:00

Hymenoscyphus sp
Sylvie Le Goff

Bonjour à tousJe sollicite votre aide pour cet as

21-04-2026 13:36

Wentiomyces-like on Salix
Gernot Friebes

Hi,I am out of ideas for this one. I collected Sal

21-04-2026 13:19

Lophodermium on Typha
Gernot Friebes

Hi,this Lophodermium on Typha has ascospores measu

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Is this a lichenicolous ascomycete?
Jennifer Fiorentino, 04-11-2020 14:06
I collected this thinking it was an arthonoid lichen growing on the bark of an old carob tree in Mediterranean Malta. However on close examination I realised that the black, arthonoid structures were rather powdery, gave some brown, septate spores, 20-15 x 4.5 - 6 um. and seemed to be growing on the lichen Arthonia atra. Am I dealing with a lichenicolous fungus and could it be an ascomycete? Photos of A. atra and the black, powdery structures as well as some of the spores observed are shown.
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Zdenek Palice, 04-11-2020 15:56
Zdenek Palice
Re : Is this a lichenicolous ascomycete?
Hallo, It is really hard to say from these pictures, but as for the brown spore, could this be a released ascospore from Rebentischia massalongii? I have impression that the narrowed left end of the ascospore on the last picture shows kind of hyaline cell. But maybe I am completely wrong. I am not the specialist. Zdenek
Jennifer Fiorentino, 04-11-2020 19:33
Re : Is this a lichenicolous ascomycete?
Thank you for your comment. Will look up further info on this fungus.
Alain GARDIENNET, 07-11-2020 18:53
Alain GARDIENNET
Re : Is this a lichenicolous ascomycete?

Hi,


I ddon't recognize old Rebentischia ascospores. It could be conidia of a lichenicoulous hyphomycete. But you have to show conidiogenous cells.


Alain