21-03-2026 15:13
Lepista ZacariasHello everyone, Does any one know of any literatu
20-10-2017 09:23
Garcia SusanaEste otro crecía en el mismo trocito de madera qu
20-03-2026 16:16
Edvin Johannesen
These 0.5 mm diam. acervuli were breaking through
19-03-2026 19:34
Filip Fuljer
Hello everyone,a few days ago I collected this str
19-03-2026 18:25
William Slosse
Good evening everyone, On 18/03/26 I found a few
17-03-2026 10:09
François Freléchoux
Bonjour, Voici la description rapide d'un petit d
19-03-2026 17:50
Enrique Rubio
Hi to everybodyThese thiny, blackish pseudothecia
Bryostigma lapidicola o Micarea?
Gonzalez Garcia Marta,
14-06-2022 12:48
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.
Hans-Otto Baral,
14-06-2022 16:44
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
Hans-Otto Baral,
14-06-2022 21:03
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.