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28-04-2024 18:05

Pseudoophiobolus (?) sur Teucrium botrys
Bernard CLESSE Bernard CLESSE

Bonsoir à toutes et tous,J'ai trouvé ce matin ce

28-04-2024 13:30

Pale Trichopeziza
Juuso Äikäs

On Friday I found these pale, hairy little discos

24-03-2024 08:27

Rosellinia britannica ?
Thierry Blondelle Thierry Blondelle

HiOn Hedera helix fallen branchEcological habitat:

26-04-2024 10:07

Rhytismataceae on Juniperus sabina
Mathias Hass Mathias Hass

Hello, Does anyone know what this is? Found on J

24-04-2024 21:54

Lasiobolus macrotrichus
éric ROMERO éric ROMERO

Bonjour, J'ai trouvé ce Lasiobolus sur laissées

23-04-2024 15:18

out of topic - peculiar unripe fungus, not an ascomycete
Lothar Krieglsteiner Lothar Krieglsteiner

... but likely a basidiomycete. I hope it is o.k.

23-04-2024 13:17

Ascobolus foliicola
Edouard Evangelisti Edouard Evangelisti

Bonjour à tous, Je viens de récolter ce que je

23-04-2024 21:49

Byssonectria (?) Pyronemataceae from Eastern US
Ethan Crenson

Hello all, A friend recently found this orange as

22-04-2024 11:52

Microstoma from South Korea
Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I made a loan of a collection of Microstoma

11-01-2022 16:36

Literature request: Raitviir (2004) Revised synopsis of Hyaloscyphaceae?
Jason Karakehian Jason Karakehian

Hi does anyone have a digital copy of Raitviir A (

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asco on stone
Savic Dragisa, 13-03-2024 14:09
Lichens and parasites on them are not close to me, and this may be something close to that. The stone was on the ground, with some moss but no visible thallus of any lichen. Black small perithecia (0,15-0,20mm diam.) were at one end and around them only these, I guess green algae. Spores resemble Lichenochora in shape.
Any help is welcome

thanks
Dragiša
  • message #78575
  • message #78575
  • message #78575
Zdenek Palice, 13-03-2024 14:17
Zdenek Palice
Re : asco on stone
Hallo,

it could be a member of Verrucariaceae like Thelidium minutulum Körb., which is a typical pioneer on small stones

Zdenek
Lothar Krieglsteiner, 13-03-2024 14:18
Lothar Krieglsteiner
Re : asco on stone
Hello Dragiša,
I don`t have a determination for you.
But I think the orange color is because of Trentepohlia green algae becoming free because the "cultivating" lichen fungus is dying.
Best, Lothar
Zdenek Palice, 13-03-2024 14:25
Zdenek Palice
Re : asco on stone
I guess no trentepohlioid algae are present in the last microphoto, and the brick colour on th fiirst picture is that of the stone, is it a weathered piece of brick? or of roof tile? or is it a volcanic or metamorphic pebble rich in iron oxides?
Savic Dragisa, 13-03-2024 14:27
Re : asco on stone
Thanks, that's right, I didn't even look at Verrucariales.
Savic Dragisa, 13-03-2024 14:30
Re : asco on stone
It's a piece of brick, not a stone, I see now.