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19-11-2019 17:35

Lothar Krieglsteiner Lothar Krieglsteiner

... also in National Park Eifel, Germany, 16.11.20

20-01-2020 14:52

Josep Torres Josep Torres

Hola.Unas imágenes del 21 de Mayo de 2018, de un

27-12-2019 04:11

Koszka Attila

On dead, still attached Sambucus-twig. Spores 6,5

22-01-2020 14:17

Chris Yeates Chris Yeates

Bonjour tous This post also links to http://www.a

20-01-2020 18:19

Valencia Lopez Francisco Javier

Hola a todos/asTengo estas Pseudombrophila sp, rec

22-01-2020 13:36

Castillo Joseba Castillo Joseba

Recolectada en hoja seca de Acebuche (Olea europae

22-01-2020 11:51

Bernard Declercq Bernard Declercq

Hi,Collected on twigs of Castanea sativa:Pycnidia

21-01-2020 21:24

Sven Heinz Sven Heinz

Hello, what kind of mushroom is this? It grows on

18-01-2020 19:03

BERNARD CLESSE BERNARD CLESSE

Bonsoir à toutes et tous,Une idée pour cet asco

20-01-2020 18:55

Andgelo Mombert

Bonsoir, Un petit discomycète vert noirâtre mes

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"Nectria" on Sarothamnus (Cytisus) scoparius in Germany
Lothar Krieglsteiner, 19-11-2019 17:35
Lothar Krieglsteiner

... also in National Park Eifel, Germany, 16.11.2019.


There is no KOH-reaction, so this can not be an Nectria(ceae).


The spores are 1-septate, and about (8)-9-11,5/2,5-3,5 µm, with oil 3.


The perithecia look rough under the lens (maybe like Nectria cinnabarina), but not notably hairy.


Can somebody provide me with a hint?


Best, Lothar

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Christian Lechat, 19-11-2019 18:38
Christian Lechat
Re : "Nectria" on Sarothamnus (Cytisus) scoparius in Germany
Hi Lothar,

if there are numerous oily droplets in ascomatal wall and hymenium, you should consider Clonostachys, but did you test ascomata in lactic acid?

Christian
Lothar Krieglsteiner, 19-11-2019 18:51
Lothar Krieglsteiner
Re : "Nectria" on Sarothamnus (Cytisus) scoparius in Germany

Hello Christian,


thank you very much for your repeat!


I think there was a lot of oil in the structures you mention.


I did not test lactic acid - I will try to do this soon.


Best regards, Lothar

Lothar Krieglsteiner, 22-01-2020 16:27
Lothar Krieglsteiner
Re : "Nectria" on Sarothamnus (Cytisus) scoparius in Germany

Hello Christian - and other readers,


in the meantime I received lactic acid (I did not have and it was not so easy to get!) and now I prepared one ascoma in this medium. The red colour is changing into (orange) yellow.


Does this mean it is Clonostachys? And can there be a proposal for a species? Is there a key for the species of this genus?


Thanks and best regards, Lothar

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