Accès membres

Mot de passe perdu?

29-11-2019 12:11

En tela de algodón

Castillo Joseba

Castillo Joseba

Me mandan esta muestra de Galicia, recolectada e

03-12-2019 13:06

[Hyaloscypha cf vitreola] cupules minuscules

PASCAL DUBOC

Bonjour une colonie de micro cupules sessiles à

01-12-2019 23:13

RubÃ©n MartÃnez-Gil

Rubén Martínez-Gil

Hola a todos. Subo unas fotos de un asco que he e

01-12-2019 13:20

Elisabeth Stöckli

Bonjour, Trouvé sur bois mort et décortiqué de

02-12-2019 19:12

Gnomoniopsis? => probably G. comari s.l.

Riet van Oosten

Riet van Oosten

Hello,Found by Laurens van der Linde, nov. 2019, T

30-11-2019 20:24

Peziza on sandy soil

Manak Roman

Dear all, I need help with this Peziza. I found

02-12-2019 09:24

Question about nomenclature

Peter Welt

Peter Welt

A question about nomenclature. Is it permissible f

30-11-2019 17:13

Asco on racomitrium

Robin Isaksson

Robin Isaksson

Found this asco on Racomitrium, the moss was dead

01-12-2019 22:12

[Lophiotrema rubi] Massarina ???

PASCAL DUBOC

Bonsoir je ne sais si je suis dans le bon genre..

02-12-2019 08:20

Eriopeziza caesia

PASCAL DUBOC

Bonjour petite colonie de ces cupules brunâtres

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likely out of topic - anamorph of Botryobasidium?

Lothar Krieglsteiner, 29-11-2019 12:56

Lothar Krieglsteiner

... collected in the National Park of Eifel, Germany, 13.11.19, on very freshly fallen log of Fagus sylvatica, on the bark (iniatial phase), abundantly growing.

The conidia are very variable in size, about (12)14-18(21)/(7,5)9-13(17) µm, the hyphae are about 14-18 µm broad, at the clavate ends up to 23 µm.

I think of an anamorph of Botryobasidium, but I do not clearly get to a species. Does somebody?

Best regards, Lothar

Eduard Osieck, 29-11-2019 15:53

Re : likely out of topic - anamorph of Botryobasidium?

Could be “out-of-topic” indeed: this reminds me of the algae Trentepohlia which forms extensive orange mats on tree trunks like Pinus sylvestris.
See for instance: http://www.bioref.lastdragon.org/Chlorophyta/Trentepohlia.html
Eduard

Lothar Krieglsteiner, 29-11-2019 15:56

Lothar Krieglsteiner

Re : likely out of topic - anamorph of Botryobasidium?

Hello Eduard,

thank you for your proposal.

But - I do not believe this. I saw Trentepohlia often, on rocks and on wood also. I am sure this is a fungus.

Best regards, Lothar

Thorben Hülsewig, 29-11-2019 16:24

Re : likely out of topic - anamorph of Botryobasidium?

Hi Lothar,

compare with Nematogonum ferrugineum.

Viele Grüße,
Thorben

Lothar Krieglsteiner, 29-11-2019 16:33

Lothar Krieglsteiner

not out of topic - Nematogonum ferrugineum

Hallo Thorben,

fantastisch - das scheint sehr gut zu passen.

Ich habe mich hier informiert:

http://www.ascofrance.com/forum/13380/asco-sur-fagus

Wenn ich es richtig verstanden habe, handelt es sich um einen Parasiten auf Neonectria-Arten. In der Nähe sah ich N. coccinea (oder was ich dafür halte), insofern passt es vorzüglich, natürlich auch bezüglich der makro- und mikroskopischen Merkmale.

Nochmals danke und herzliche Grüße

Lothar