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21-07-2024 10:13
![Thierry Blondelle](/uploads/user_vgn/-0211.jpg)
Bonjour,Récolte sur branchette de Castanea dans u
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21-07-2024 10:28
![Alan Rockefeller](/uploads/user_vgn/-0063.jpg)
Which Peziza did I find on horse dung in Humboldt
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19-07-2024 11:08
![Miguel Ãngel Ribes](/uploads/user_vgn/Ribes-0001.jpg)
Good morningThis Scutellinia from July 9 grew at 1
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21-07-2024 06:23
Masanori KutsunaDear all, Does anyone have these papers and send
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08-07-2024 23:34
Villalonga PacoSmall Scutellinia growing in garden soil (calcareo
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16-07-2024 18:32
![Andgelo Mombert](/uploads/user_vgn/Mombert-0001.jpg)
Bonsoir, Un discomycète sur Liochlaena lanceolat
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
![Hans-Otto Baral](/uploads/user_vgn/Baral-0001.jpg)
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
![Hans-Otto Baral](/uploads/user_vgn/Baral-0001.jpg)
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.