Accès membres

Mot de passe perdu? S'inscrire

20-01-2021 19:56

Enrique Rubio Enrique Rubio

Perithecia non stromatic, clypeate, inmersed under

21-01-2021 20:38

Juuso Äikäs

This is a finding from last June, growing on a dea

21-01-2021 15:59

Mirek Gryc

Hi.Found a few years ago but so far I do not know

20-01-2021 11:04

Marek Wolkowycki Marek Wolkowycki

Bialowieza Forest, on dead fruiting bodies of Skel

21-01-2021 17:26

Blasco Rafael Blasco Rafael

Hola, alguno de Ustedes dispone de este Articulo 

21-01-2021 17:33

Blasco Rafael Blasco Rafael

Este otro Articulo Esta disponible para alguno de

20-01-2021 12:29

Castillo Joseba Castillo Joseba

me mandan el material seco, recolectado en Galicia

21-01-2021 15:48

Mirek Gryc

The find is a bit archival (2016) but not yet micr

21-01-2021 13:15

Castillo Joseba Castillo Joseba

Me mandan el material seco de Galicia,  recolecta

21-01-2021 09:53

Christian Lechat Christian Lechat

Hi to all, I would need the following paper: Phy

« < 1 2 3 4 5 > »
pyrenomycete
greet van autgaerden, 26-03-2017 09:44
Hi everybody,
Can anyone help me with this:

On the inside of the bark of Salix .
Perithecia soft black sphaerical with short necks. 0,15 mm wide, superficial, closely packed in groups of 5-6, several of these groups 3-4 cm apart. Ascospores hyaline, 50-60*2 µm, with high oil content, becoming at least 5-septate , maybe more. Asci 75*9 µm, IKL negative. Paraphyses: 100*7-8 µm, septate. No anamorf to be found.

Thank you,
Greet  

  • message #48173
  • message #48173
  • message #48173
  • message #48173
  • message #48173
Eduard Osieck, 26-03-2017 12:18
Re : pyrenomycete
Hi Greet,

Interesting collection. Are the perithecia stromatic? If so, you could consider the genus Sillia, e.g. S. ferruginea, which is described in Munk 1957 (another reference, see tab "Artikelen" at https://www.verspreidingsatlas.nl/1147010#). A generic description is given in sleutel (key) A9: see
http://www.mycologen.nl/Ascosleutel/downloads/SleutelA13_v3-1.pdf

Eduard
Jacques Fournier, 26-03-2017 16:10
Jacques Fournier
Re : pyrenomycete
Hi Greet,
I suggest you consider the genus Ophioceras, primarily known from aquatic habitats but including some terrestrial species. The apical apparatus of asci is indeed J- but stains with blue ink or Congo red.
A good, if not comprehensive account was given by Shearer et al., Mycologia 91: 145-156. Should be available on Cyberliber.
good luck,
Jacques
greet van autgaerden, 26-03-2017 20:52
Re : pyrenomycete
Hi Eduard and Jacques, 
Thanks for your advice and help,

@Eduard: I started out in the first place with the key you suggested (great key) and couldn't find a match.There is no stroma, only a dark patch surrounding the peritecia, this being wood stained black.

 @Jacques: I made a new picture where I stained the asci with Congo-red. The coloring isn't much but I think it could be considered as a positive reaction. I read the article you suggested but couldn't find a species that matches my measurements. So it'll stay a Ophioceras sp.

Thanks,
Greet
  • message #48182