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11-05-2016 20:37

Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hi,this very little ascomycete grew on soil in a m

08-05-2026 11:55

Gernot Friebes

Hi,found on a decorticated Picea abies branch stil

07-05-2026 11:02

Ã…ke Widgren Ã…ke Widgren

Hello,About two months ago I found a strange Delit

05-05-2026 22:40

Gernot Friebes

Hi,I believe this is a Plagiostoma growing on a Sa

06-05-2026 11:25

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia (España) re

06-05-2026 17:23

Thomas Læssøe

https://svampe.databasen.org/observations/10594257

28-04-2026 20:07

Lothar Krieglsteiner Lothar Krieglsteiner

... on twig in the air at standing Ceratonia siliq

04-05-2026 18:13

Stephen Martin Mifsud Stephen Martin Mifsud

ID request for what seems to be a true aquatic fun

04-05-2026 16:39

Stephen Martin Mifsud Stephen Martin Mifsud

ID request: This specimen was collected in Malta o

28-07-2011 18:31

Alex Akulov Alex Akulov

Dear FriendsToday I made the pdf file of Velenovsk

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Chaetosphaeria?
Wolfgang von Brackel, 27-02-2016 12:20
Wolfgang von BrackelHello all,

friends brought me a small pyrenomycete on rotten wood of Pinus, appearing beige-brown when young and reddish black when old. Under the micriscope the wall is yellow (young) to deep orange (old). Of course I thought on a Nectriaceae, but it has long filiform pseudoparaphyses. Can Chaetosphaeria/Zignoella have such a coloured wall or what else could this be? Ascomata c. 175 µm diam., pseudoparaphyses c. 1 µm wide, unbranched, asci 50-60 x 7-8 µm, 8-spored, ascospores 16-20 x 4 µm, 4-celled, hyaline, smooth.
  • message #41200
  • message #41200
Javier Etayo, 28-02-2016 18:16
Re : Chaetosphaeria?
The habit and your description of paraphyses and spores could fit well with a Porina (lichen).
Wolfgang von Brackel, 28-02-2016 18:42
Wolfgang von Brackel
Re : Chaetosphaeria?
Thank you Javier! I did not think on a lichen, a thallus was not visible. But of course, maybe! I never looked at the colour of the wall of Porina. Wolfgang