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Geopora foliacea parasite
Miguel Ángel Ribes, 04-02-2010 18:34
Miguel Ãngel RibesGrowing on the himenio of Geopora foliacea, small apotecios of 0,5-1 mm of diameter, gregarious, sesiles, globular, firm consistency, color beige clear initially(originally) and they getting dark towards brown colors on having matured spores.

Brown spores, citriformes, with a clearly convex side and another more plane and with two papilas in the ends.

Sporal meassurements (600x, in water, fresh material)
24.8 [27.3 ; 27.9] 30.4 x 12.3 [13.7 ; 14] 15.4
Q = 1.8 [2 ; 2] 2.2 ; N = 68 ; C = 95%
Me = 27.59 x 13.84 ; Qe = 2

More details in the attached file

Thank you

  • message #10230
Perz Piotr, 04-02-2010 18:46
Re:Geopora foliacea parasite
Dear Miguel

This seems to be Melanospora brevirostris (Fuck.) Tul. See Kers, L., The Swedish Geoporae and their Pyrenomycete Infections, Sv. Bot. Tidsk. 68, pp.344-354, (1974). I like Melanospora very much, can I get a part of this collection from you ?

regards
Piotr
Christian Lechat, 04-02-2010 18:52
Christian Lechat
Re:Geopora foliacea parasite
Dear Miguel,
I think your fungus is Melanospora brevirostris (Fuckel) Höhnel, this species is common on Geopora arenosa.

Regards,
Christian
Perz Piotr, 04-02-2010 19:00
Re:Geopora foliacea parasite
Oh !! Of course the second author isHöhnel !
Miguel Ángel Ribes, 04-02-2010 19:51
Miguel Ãngel Ribes
Re:Geopora foliacea parasite
Dear Perz

Really it looks like the same species, but M. brevirostris has smaller spores, though the same Q. I do not have Kers's article and do not find it in the Internet, could you provide it to me?

If you give me your postal address I will send it to you.

Thank you very much,
Miguel Ángel Ribes, 04-02-2010 19:57
Miguel Ãngel Ribes
Re:Geopora foliacea parasite
Thanks Cristian

If it is common on G. arenosa perhaps it will not be unussual on G. arenicola.

Best regards,
Carlo Agnello, 05-02-2010 07:06
Carlo Agnello
Re:Geopora foliacea parasite
Last month I made collections Hydnocystis clausa with Melanospora sp.
  • message #10256
Perz Piotr, 05-02-2010 09:27
Re:Geopora foliacea parasite
Ciao Carlo,

do you have the sizes of the ascospores? Perithecjum with out beck?

bye
Carlo Agnello, 05-02-2010 17:52
Carlo Agnello
Re:Geopora foliacea parasite
Ciao Piotr,
the size are 24,5 x 14,0 (21,2-27,0 x 11,9-15,3) Q 1,76 (1,54-1,95)

and some pics...

Miguel Ángel Ribes, 02-05-2010 23:52
Miguel Ãngel Ribes
Re:Geopora foliacea parasite
Good night

Do you know whether this species, Melanospora brevirostris, is cited in Spain? I know it is cited in Denmak, France, England and Italy in Europe.

Thank you.

Miguel,
Carlo Agnello, 03-05-2010 11:37
Carlo Agnello
Re:Geopora foliacea parasite
Ciao Miguel,
I do not know this genus. I gave my collection available to ship to Piotr but I have not heard anything. Is it confirmed Melanospora brevirostris?
I think there is an article from Spain but I do not know if the discovery is Spanish ... I must try...
Ciao, Carlo
Miguel Ángel Ribes, 03-05-2010 14:25
Miguel Ãngel Ribes
Re:Geopora foliacea parasite
Hi Carlo

I think so, following Kers and Doveri, I think there is not doubt about M. brevirostris.

M. fallax Zukal and M. fimbriata (O. Rostr.) Petch, the nearest species, have a small neck, and M. brevirostris only has a small group of hairs in the upper portion.

http://dl.dropbox.com/u/5986266/Fichas%20dudosas/Melanospora%20brevirostris%20071209%2009.pdf

Kers, L., The Swedish Geoporae and their Pyrenomycete Infections, Sv. Bot. Tidsk. 68, pp.344-354, (1974)
DOVERI, F. (2004). Fungi fimicoli italici. AMB Fondazione Centro Studi Micologici. Pág. 757

Thank you

Miguel
Raúl Tena Lahoz, 03-05-2010 16:01
Raúl Tena Lahoz
Re:Geopora foliacea parasite
Hola Miguel Ángel y Carlo
Melanospora brevirostris (Fuckel) Höhnel (sobre Geopora arenicola) y Microthecium geoporae (Obermeyer) Höhnel (sobre Geopora cooperi) están citadas por Fernando García Alonso en el Butlletí de la Societat Micològica Valenciana Nº 11 de 2006, pag. 35-40. Fernando indica que también está citada en 1934 por Heim en L´Escala (Girona).
Luego si puedo os mando un scan. Tengo visto Microthecium geoporae sobre Geopora cooperi en la provincia de Teruel. En Valencia, en El Saler, sobre Geopora clausa y Geopora arenicola creo tener vista Melanospora sp, pero sólo tengo fotos macro.
Saludos,
Raúl.
Miguel Ángel Ribes, 03-05-2010 17:22
Miguel Ãngel Ribes
Re:Geopora foliacea parasite
Hola Raúl

Muchas gracias, no tengo ese boletín de la Micológica Valenciana, si me puedes pasar un scan de la parte en la que hable de la especie, te lo agradezco.

Un abrazo,

Miguel
Carlo Agnello, 03-05-2010 18:59
Carlo Agnello
Re:Geopora foliacea parasite
Thanks Miguel
I never had time to study and stayed just Melanospora cf brevirostris. The article I quoted is the same as Raul, but I do not have a copy.

Ciao Miguel, ciao Raul. Carlo