18-08-2014 22:40
Zuzana Sochorová (Egertová)
Good evening,is this Psilopezia nummularialis?Apot
19-08-2014 16:18
Steve ClementsPossible Geocladium luteolumHi,This was found on a
18-08-2014 18:42
Mafalda Freire Fernando
Hi, Does anyone have this one?Entomogenous fungi f
14-08-2014 20:14
Miguel Ángel Ribes
Good eveningThis small 800-1000 µm yellow-orange,
17-08-2014 16:56
Salvador TelloHola a todos. Hace unos días cogí un hongo que
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.