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16-07-2024 18:32

Bryophilous disco on Liochlaena
Andgelo Mombert Andgelo Mombert

Bonsoir, Un discomycète sur Liochlaena lanceolat

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 (

24-08-2020 13:00

Literature request: von Arx 1973
Yulia Lytvynenko Yulia Lytvynenko

Dear friends.Looking for a copy of the following w

11-07-2024 14:29

Mollisia cf caricina
Viktorie Halasu Viktorie Halasu

Hello, a thin-fleshed Mollisia on a monocot stem

15-07-2024 10:38

Ascobolus
Joaquin Martin

Hi, I found this Ascobolus in company of Cheilyme

14-07-2024 18:23

Ascomycete on dung
Joaquin Martin

Hi,I found this Ascomycete on horse dung.The spora

13-07-2024 19:50

Hamatocanthoscypha conincola
Zuzana Sochorová (Egertová) Zuzana Sochorová (Egertová)

Hello,I have identified this fungus as Hamatocanth

08-07-2024 23:34

Scutellinia umbrarum?
Villalonga Paco

Small Scutellinia growing in garden soil (calcareo

12-07-2024 02:12

Trichopezizella on Carex
Stefan Jakobsson

On a wet lake shore I found a single minute apothe

11-07-2024 10:57

Mollisia aff benesuada on leaf
Viktorie Halasu Viktorie Halasu

Hello, I have here a Mollisia on a leaf (possibly

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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.