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17-04-2017 10:06

Bernard CLESSE Bernard CLESSE

Bonjour à tous,Récolté en Forêt Noire (Schwarz

13-04-2017 18:06

Bernard Declercq Bernard Declercq

Dear all,herewith another pyreno collected on deca

17-04-2017 08:48

Angel Pintos Angel Pintos

Lophiostoma quadrinucleatum? Ascomata gregarius,

15-04-2017 18:25

Zoltan Lukacs Zoltan Lukacs

Hi,Spores: 15,12-16,2 x 7,56-8,1 micron.The spores

15-04-2017 06:37

Roland Labbé

Bonjour !J'aimerais savoir si le genre Tolypocladi

29-05-2014 22:21

Luc Bailly Luc Bailly

Bonsoir à tous,Pour vérifier la détermination d

14-04-2017 18:16

Thorben Hülsewig

Hi there,i found under rotten wood, these fungus o

13-04-2017 19:42

Andgelo Mombert Andgelo Mombert

Bonsoir à tous,Je vois sur indexfungorum que Cibo

13-04-2017 21:13

Steve Clements

Bonjour,Nous avons trouvé une Lachnellula avec de

13-04-2017 14:04

Enrique Rubio Enrique Rubio

Hi to everybodyThese minute, pulvinate, broadly se

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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).