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17-04-2026 19:16

Small dark synnemata on rotten hardwood
Enrique Rubio Enrique Rubio

Hi to everybodyI would appreciate any assistance r

14-04-2026 05:32

Pyrenomycete with yellow subiculum on Aralia
Ethan Crenson

Hi all, A few weeks back a friend pointed out som

17-04-2026 15:14

sur feuilles de Luzula
Bruno Coué Bruno Coué

Bonjour.Récoltes du 16/04/2026, sur feuilles mort

12-04-2026 15:52

Anamorph on Salix
Gernot Friebes

Hi,I'm looking for help with this anamorph collect

14-04-2026 21:52

Thyriothecioid anamorph on Carex elata
Gernot Friebes

Hi,found on dead leaves of Carex elata. Conidia: 4

16-04-2026 22:09

Parorbiliopsis samarae?
Buckwheat Pete

Hello, I'd like to ask about this older specimen:

15-04-2026 19:33

Scutellinia cf. citrina
Fátima Durán Manzaneque

Hi!! I need help, I found this Ascomycete but I d

14-04-2026 20:31

Psilachnum lateritioalbum on Phragmites australis?
Gernot Friebes

Hi,can this be Psilachnum lateritioalbum on Phragm

12-04-2026 17:56

Seeking genus for 1 – 3 septate spored asco. on herb Nepteta cataria (Mint).
Hardware Tony Hardware Tony

Found on dead stems in February earlier this year

12-04-2026 12:22

Unknown anamorph on Primula eliator
William Slosse William Slosse

In a dune grassland in Oostduinkerke (Belgium), on

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Bryostigma lapidicola o Micarea?
Gonzalez Garcia Marta, 14-06-2022 12:48
Hello,
We have found some tiny apothecia (0.25 mm in diameter) on Cortaderia selloana that react violently to iodine turning I+ red, except for the epithecium which is I+ blue. We intuit that it is a lichenized fungus.
Thallus inconspicuous or absent.
Exciple developed. septate paraphyses. Hymenium 50 microns high. Subhymenium reddish brown. Hymenophore K-, KI-.
Bicellular spores, 10-13 x 3-4 microns, brown or olive-brown, hyaline when immature. In Congo red, two gutules can be seen on each spore cell.
No pycnidia have been observed.
We have followed the keys of ITALIC 6.0 approaching Bryostigma lapidicola or the genus Micarea.
I would like to know your opinions. Thanks.
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Hans-Otto Baral, 14-06-2022 16:44
Hans-Otto Baral
Re : Bryostigma lapidicola o Micarea?
Why not a Dacrylospora (now Sclerococcum)? That genus is characterized by a thick amyloid apical cap of the asci instead of a tholus.
Gonzalez Garcia Marta, 14-06-2022 17:27
Re : Bryostigma lapidicola o Micarea?
Hello
I don't know that genre but I'll look into it. I have these photos of the apothecium in iodine, where you can see "that possible thick layer of amyloid" growing on top of the asci. I think that is a good suggestion. Thank you very much.
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Hans-Otto Baral, 14-06-2022 21:03
Hans-Otto Baral
Re : Bryostigma lapidicola o Micarea?
No doubt! Very typical is that the lateral wall reacts hemiamyloid (red) while the apex is blue (euamyloid). In MLZ (without KOH-pretreatment) only the top would be reactive.

There is a key of the genus by Ihlen et al. 2004. The genus was quite often posted in Ascofrance.
Gonzalez Garcia Marta, 14-06-2022 22:25
Re : Bryostigma lapidicola o Micarea?
Muchas gracias Hans-Otto.