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05-05-2026 22:40

Gernot Friebes

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

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

28-04-2026 20:07

Lothar Krieglsteiner Lothar Krieglsteiner

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

04-05-2026 09:50

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia,(España) re

03-05-2026 11:38

Castillo Joseba Castillo Joseba

Me mandan el material seco, recolectado en dunasLo

02-05-2026 12:42

Alain BRISSARD

Bonjour à tousJeuidi 30 avril dernier on m'a remi

02-05-2026 13:06

Pauline. Penna

Bonjour  Please can someone help me with this id

01-05-2026 22:45

Thierry Blondelle Thierry Blondelle

Bonjour à tous, Une récolte sur bouse séchée d

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Black acervuli with strange brown "phragmo"conidia
Edvin Johannesen, 08-05-2019 17:28
Edvin JohannesenThese small, black cushions were collected on a thin twig (presumabley deciduous). Very strange conidia appeared under the microscope (in KOH). The septa appear to be wavy, partly transversal, partly longitudinal, so possibly muriform. Some have a hyaline, apical appendage/pedicel-like structure at one end. In phase contrast a slimy (gelatinous) matrix becomes evident. Are genera like Coryneum or Seiridium possibilities or am I on the wrong track? Suggestions appreciated. Thanks!
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Lothar Krieglsteiner, 08-05-2019 17:43
Lothar Krieglsteiner
Re : Black acervuli with strange brown "phragmo"conidia

Hello Edvin,


whatever fungus this could be - the "conidia" you show appear as strongly collapsed to me - likely due to age.


They could also be ascospores with the asci already faded (?).


Yours, Lothar

Edvin Johannesen, 08-05-2019 17:54
Edvin Johannesen
Re : Black acervuli with strange brown "phragmo"conidia
Thanks, Lothar.  In fact, it was collected a months ago and it was studied without drying, but of course, the fungus may have "wintered".  It looks pretty fresh, though.  I doubt they are ascospores, since several have the appendage (although I guess that doesn't totally rule out ascospores).