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17-03-2024 08:43

Echinosphaeria curvatispora
Joaquin Martin

Hi,I found this Ascomycete on Fagus wood.Spore siz

16-03-2024 18:33

literature request
Angel Pintos Angel Pintos

Hello.Anybodfy has this article?Phylogeny of Grap

16-03-2024 13:45

literature request
Angel Pintos Angel Pintos

Hello,Anybodu has?Fungi causing tar spots on palms

10-03-2024 19:57

Cheilymenia sp
Thierry Blondelle Thierry Blondelle

HelloI need to progress with the key of Cheilymeni

15-03-2024 21:00

white disc on Amelanchier spicata
Robin Isaksson Robin Isaksson

Spores 11-13 x 4-5 um, aseptateAsci 53-60 x 10 cro

15-03-2024 18:26

Sclerotinia sp.
Vasileios Kaounas Vasileios Kaounas

Found in Cupressus semprevirens stipe 1-1,2 cm d

15-03-2024 13:30

Possible Hyaloscypha albohyalina
B Shelbourne B Shelbourne

• Looks like Hyaloscyphaceae (without VBs).• H

14-03-2024 16:36

Shearer and Crane 1978
Roberta Pini

Hello, can anybody share with me the following pd

14-03-2024 09:12

Calyptellopsis-like Cyathicula on moss and cones
Michel Hairaud Michel Hairaud

Bonjour, Voici une récolte avec des caractères

14-03-2024 08:21

Orbilia on Diatrype
Marc Detollenaere Marc Detollenaere

Dear Forum,On Diatrype I found some small Orbilia-

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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.