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23-12-2024 14:37

Josep Torres Josep Torres

Hello.Some tiny globose black ascomata found on De

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Hello!I've been working with this small fungus for

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Hello,I'm trying to find information about the Hyp

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Marc Detollenaere Marc Detollenaere

Dear Forum,On naked wood of Fagus, I found some ha

24-12-2024 09:02

Charles Aron Charles Aron

Hi All, Recently I found this orange Disco growin

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Bometon Javier Bometon Javier

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Lothar Krieglsteiner Lothar Krieglsteiner

this fluffy anamorph was repeatedly found on decid

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Coelo on twigs of Aesculus with "vermiform" conidia - Denmark
Thomas Læssøe, 11-07-2024 15:05
https://svampe.databasen.org/observations/10423287


Pycn superficial in the bark of 5 mm thick twigs. Conidia ± sicle-shaped with up to 4 septa,  30 - 60 x 3 µm, hyaline 

cheers


Zdenek Palice, 11-07-2024 15:49
Zdenek Palice
Re : Coelo on twigs of Aesculus with "vermiform" conidia - Denmark
Hallo, one of the options is that your structures could belong to pycnidia of a lichen. Are any algae associated? To my mind  'Biatora' albohyalina comes which is frequently present only in pycnidial state of pallid half-immersed pycnidia. Also some members of the genus Micarea may occur only in anamorphic stage (small 'micareoid algae' of 4-7(8) µm should be present); long-macroconidial taxa of Micarea also often contain gyrophoric acid in the wall of pycnidia and/or in thallus (or in apothecia when fertile), so they should react C+ fleetingly reddish by Calcium-chloride. There likely exist more lichens with similar conidia but they seem to be slimmer than 3 µm. At least 'Biatora' albohyalina and Micarea taxa should have thinner macroconidia. This is just for your consideration, who knows what it is? :-).

Zdenek
Thomas Læssøe, 11-07-2024 16:11
Re : Coelo on twigs of Aesculus with "vermiform" conidia - Denmark
thanks :-)