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29-11-2019 12:56

Lothar Krieglsteiner Lothar Krieglsteiner

... collected in the National Park of Eifel, Germa

29-11-2019 14:21

Stephen Martin Mifsud Stephen Martin Mifsud

Can you suggest opinions on this mycoparasite, 0.8

28-11-2019 21:48

Robin Isaksson Robin Isaksson

Could need some help with this asco (confirmation)

07-11-2019 20:59

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde on a young

27-11-2019 03:00

Roland Labbé

Bonjour ! Voici un Trichoderma (Hypochrea) trouv

27-11-2019 22:12

William Slosse William Slosse

Hello,a few days ago I took pictures of some liche

25-11-2019 21:05

Robin Isaksson Robin Isaksson

Spores round 3.5-4.5 um smooth it seems. Asci is

26-11-2019 18:41

François Bartholomeeusen

Hello forum members,On October 15, 2019, I found s

26-11-2019 19:23

Enrique Rubio Enrique Rubio

This Hysterial grew on stems of Phragmites austral

27-11-2019 07:24

Björn Nordén

Hi all,Could you please help with this? It was fou

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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

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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