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05-03-2026 19:29

Ciboria caucus?
William Slosse William Slosse

Good evening everyone,On March 4, 2026, I found th

05-03-2026 10:07

White apothecia on pine cone
Hulda Caroline Holte

Hello, I found and collected this species growing

05-03-2026 16:30

Is this Diaporthe rudis?
François Bartholomeeusen

Dear forum members, On the 2nd of February 2026,

19-02-2026 17:49

Ayuda con Tarzetta sp
Salvador Emilio Jose

Hola buenas tardes!! Necesito ayuda para la ident

28-02-2026 11:05

Peziza
Yanick BOULANGER

Bonjour à tousLe 24/02/2026 à Montmacq, devant m

03-03-2026 20:34

Cercophora-Podospora-Arnium 210226 333 on cow dung
Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningThese small, amphora-shaped perithecia

28-02-2026 11:54

Sinensia
Alain GARDIENNET Alain GARDIENNET

Hi forum,Is anyone aware if the 1936 edition of Si

02-03-2026 22:07

Geopyxis majalis ?
Jorge Hernanz

Buenas noches!Entre musgos, bajo Pinus halepensis

01-03-2026 18:02

unidentified Helotiales on a leaf
Francois Guay Francois Guay

I found this mystery Helotiales on an incubated le

28-02-2026 14:43

Georgian litterature
Alain GARDIENNET Alain GARDIENNET

A new refrence desired :Svanidze, T.V. (1984) Novy

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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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Christian Lechat, 22-01-2020 18:40
Christian Lechat
Re : "Nectria" on Sarothamnus (Cytisus) scoparius in Germany
Hi Lothar,

it is not Clonostachys because the change of colour in lactic acid.

It is a species of Nectriaceae. But without asexual morph it is impossible to know the genus, although I suspect a fusarium-like asexual morph.

Christian
Lothar Krieglsteiner, 23-01-2020 11:33
Lothar Krieglsteiner
Re : "Nectria" on Sarothamnus (Cytisus) scoparius in Germany

thank you very much, Christian!


I will try to find an anamorph on the twig - if I am successful I will write again.


Best regards, Lothar