Accès membres

Mot de passe perdu? S'inscrire

18-03-2011 11:17

Miguel Ãngel Ribes Miguel Ángel Ribes

Hi again This one is from french Pyrenees: h

18-03-2011 11:15

Miguel Ãngel Ribes Miguel Ángel Ribes

Another Peziza from Tenerife too: http://www.mi

18-03-2011 11:14

Miguel Ãngel Ribes Miguel Ángel Ribes

Good morning again I have some Pezizas not iden

18-03-2011 10:32

Miguel Ãngel Ribes Miguel Ángel Ribes

Good morning This Hymenoscyphus is from Fuente

16-03-2011 14:52

Amy Rossman

Dear avid microfungus collectors, We are workin

16-03-2011 14:31

roman vargas alberto

Hi. I would like some opinion about this Peziza

14-03-2011 23:27

Javier Ormad

Me lleva a Orbilia xanthoguttulata, "mon ami" ¿E

14-03-2011 19:32

Marja Pennanen

Hello, once again I have difficulties to find a

14-03-2011 18:35

Björn Wergen Björn Wergen

Hi, today I looked for some small fungi on Heme

14-03-2011 14:10

Hans-Otto Baral Hans-Otto Baral

Hi I am searching for planche 485 of Bulliard,

« < 1390 1391 1392 1393 1394 > »
Green ascomycete on Sorbus and Malus
David Malloch, 07-03-2011 19:03
David MallochHello,

After three or four years of seeing this fungus, and not being able to identify it, I turn to you all for help. It grows on old decorticated branches of Sorbus decora, and sometimes apple as well, in very dry and bleached areas of the wood, usually accompanied by Propolis farinosa, Cryptodiscus pallidus and Agyrium rufum. It is common in the winter.

The ascomata are green and erumpent through the uppermost layer of the wood. They start with a small pore like a pyrenomycete but later open widely like Cryptodiscus. The asci are unitunicate (I think) and do not have conspicuous apical structures. The living asci do not have any bluing in Lugol's, although the contents become orange. There are inconspicuous croziers. In the picture they are shown in Shear's Mounting Medium with Ink Blue.

The ascospores are 4 to 8 per ascus, hyaline, smooth and transversely 3-septate. Occasionally there is an oblique septum, but this is uncommon. They measure about 18-19 X 6-7 µm.

Does anyone recognize this fungus?

Regards,

Dave
  • message #14612
Gernot Friebes, 07-03-2011 19:47
Re:Green ascomycete on Sorbus and Malus
David Malloch, 07-03-2011 19:54
David Malloch
Re:Green ascomycete on Sorbus and Malus
Hi Gernot,

Thanks for the tip. I guess I overlooked that group of posts.

Dave