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19-07-2012 16:46

Chris Yeates Chris Yeates

I struggled for a long time with this before "the

19-07-2012 08:21

Zoltan Lukacs Zoltan Lukacs

Chers Amis,Diam: 1-2 mm, sur sol (peut-être des m

18-07-2012 19:39

Enrique Rubio Enrique Rubio

Hi to everibodyWe have collected on previous years

17-07-2012 15:05

Christian Lechat Christian Lechat

Dear friends,I would need of a key to the species

13-07-2012 17:00

Ismael Wind

Sometimes you think you it, under the mic its some

15-07-2012 00:20

Martin Bemmann Martin Bemmann

Hi all,another peziza-rookie question:today I coll

14-06-2011 12:31

Luc Bailly Luc Bailly

Dans la Grande Fange de Bihain, en Ardenne belge,

14-07-2012 18:55

Hans-Otto Baral Hans-Otto Baral

Does anybody have a pdf of Batra L.R. 1991 – Wor

13-07-2012 08:11

Alain GARDIENNET Alain GARDIENNET

Bonjour, Cet amas coloré de conidies en chaîne s

11-07-2012 23:18

Alain BRISSARD

Bonsoir à tousCompte-tenu de l'identification dé

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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