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17-03-2014 19:51

maurice pelissier maurice pelissier

Poussant sur une grosse branche morte 10 cm de lon

16-03-2014 17:27

Maren Kamke Maren Kamke

Hi everybody, this pyreno with strange spores is

17-03-2014 21:45

Salvador Tello

Hola.Tengo estos hongos que he encontrado creciend

17-03-2014 19:41

Enrique Rubio Enrique Rubio

Someone has this article on Sordaria? Thanks agai

16-03-2014 22:00

Ralph Vandiest Ralph Vandiest

Hello,I found this species a few months ago but ha

17-03-2014 10:02

Michel Hairaud Michel Hairaud

Bonjour à tous, Queridos amigos, Hi to everyone,

21-02-2014 16:19

Eduard Osieck

On a small Fraxinus branch under the bark whitish

12-03-2014 20:57

Miguel Ãngel Ribes Miguel Ángel Ribes

Good nightI had this collection like C. granulifor

26-02-2014 22:16

Ralph Vandiest Ralph Vandiest

Hello,I found this species on heracleum. Size 0,

16-03-2014 13:39

Enrique Rubio Enrique Rubio

HI to all I'm looking for B. Hein's article on Wi

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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.