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24-11-2020 20:23

Cyathicula pallida?
William Slosse William Slosse

Hello all,could this be Cyathicula pallida?J+With

23-11-2020 17:16

Lasiobelonium or Trichopezizella (?) on Populus
Edvin Johannesen Edvin Johannesen

This very small (ca. 1 mm when disck is open), bea

24-11-2020 16:16

Sordarialean mimicking Cercophora sulphurea, on wood in pasture - Denmark
Thomas Læssøe

sulphur, woolly covering a la Cercophora sulphurea

23-11-2020 15:11

Rutstroemia (?) on Corylus avellana
Edvin Johannesen Edvin Johannesen

Dear all, This one was sent to me as exciccate. O

23-11-2020 17:39

Yellow Discomycete on Dung
Charles Aron Charles Aron

Hi All, I found this yellow Discomycete on dung,

09-07-2017 10:27

Hymenoscyphus scutula?
William Slosse William Slosse

I found following species in damp litterlayer in A

23-11-2020 19:21

Tiny on Corylus husk
Edvin Johannesen Edvin Johannesen

Quick question: Is there a tiny, sessile, whitish

23-11-2020 18:50

On Roe's feces?
Mirek Gryc

Hi Massively on roe feces.I have no experience wi

12-05-2020 13:13

Neonectria punicea?
Mirek Gryc

Hi everyoneThis spring, I found this species growi

20-11-2020 18:41

Nectriaceae?
Mirek Gryc

Hi The fruiting bodies grew on a piece of twig ly

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asco on stone
Dragiša Savic, 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?
Dragiša Savic, 13-03-2024 14:27
Re : asco on stone
Thanks, that's right, I didn't even look at Verrucariales.
Dragiša Savic, 13-03-2024 14:30
Re : asco on stone
It's a piece of brick, not a stone, I see now.