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28-06-2025 17:10

Peter Welt Peter Welt

I'm looking for: RANALLI, M.E., GAMUNDÍ, I.J. 19

28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

27-06-2025 14:09

Åge Oterhals

I found this pyrenomycetous fungi in mountain area

26-06-2025 17:53

Angel Pintos Angel Pintos

Does anyone have the following paperMycocaliciacea

11-06-2025 16:26

Jason Karakehian Jason Karakehian

Hi everyone, I am looking for the following protol

23-06-2025 13:25

Enrique Rubio Enrique Rubio

I would like to hear your opinion on this Scutelli

25-06-2025 16:56

Philippe PELLICIER

Bonjour, pensez-vous que S. ceijpii soit le nom co

25-06-2025 16:25

Thomas Flammer

My first impression was sth like Rutstromeia, but

24-06-2025 22:29

Danny Newman Danny Newman

Hello AscoFrance, I have recently photographed, c

24-06-2025 14:00

Warre Van Caenegem

I'm currently in Croatia doing fieldwork that is n

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is this Hysterobrevium smilacis?
Chris Yeates, 19-07-2012 16:46
Chris YeatesI struggled for a long time with this before "the penny dropped" - the shape of the ascoma being very short; this was a solitary pseudothecium on a fallen twig of Picea abies (non-native in Britain); ascospores 21.2-26.2 x 8.3-9.1µm; I have run it through Boehm's key and arrive at Hysterobrevium smilacis; comparison with Alain's http://www.ascofrance.com/search_recolte/2649? shows very similar ascospores.
My only reservation is the substrate - I can see that this taxon is highly plurivorous, but it has not been recorded (as far a I can see) on a Gymnosperm in Britain. Is that a problem?

Cordialement
Chris

J'ai lutté pendant longtemps avec cela avant «ça a fait tilt», la forme de l'ascoma étant très courte?, ce qui était un pseudothèce solitaire sur une brindille tombée de Picea abies (non-natif de Grande-Bretagne); ascospores de 21,2-26,2 x 8,3-9.1?m. Je l'ai parcouru le clé de Boehm et arriver à Hysterobrevium smilacis; comparaison avec http://www.ascofrance.com/search_recolte/2649 d'Alain ?montre ascospores très similaires.
Ma seule réserve est le substrat - Je vois que ce taxon est très «?plurivorous»?, mais il n'a pas été enregistrée (d'aussi loin que je peux voir) sur un gymnosperme en Grande-Bretagne. Est-ce un problème?

PS how do you say «plurivorous» in French?

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Hans-Otto Baral, 19-07-2012 17:40
Hans-Otto Baral
Re : is this Hysterobrevium smilacis?
From microscopy I actually do not see any difference. Gloniopsis smilacis is the same. I was aware of Hysterobrevium mori (previously Hysterographium) but not this combination.

The features of these genera are not clear to me, Boehm's key stresses only spore characters (mainly size). Seems mainly molecularly founded.

Zotto
Chris Yeates, 19-07-2012 17:52
Chris Yeates
Re : is this Hysterobrevium smilacis?
Alain GARDIENNET, 19-07-2012 22:38
Alain GARDIENNET
Re : is this Hysterobrevium smilacis?

Hi Chris,
 No problem for Hysterobrevium smilacis, typical ascospores. I have seen it on many different hosts (more than 15), including Pinus (Pinus pinaster and Pinus sylvestris). Why not Picea ? 
Alain
Chris Yeates, 19-07-2012 22:50
Chris Yeates
Re : is this Hysterobrevium smilacis?
Merci beaucoup, Alain

Amitiés
Chris