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27-04-2026 20:52

Lothar Krieglsteiner Lothar Krieglsteiner

Found on hanging tiwg of Olea europaea in dried-ou

27-04-2026 18:48

Tony Moverley

Collected 23rd April 2026, Norfolk, EnglandSwarms

27-04-2026 17:41

Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, same leaf than the last post. The con

27-04-2026 18:05

Lothar Krieglsteiner Lothar Krieglsteiner

... still attached at standing tree. The green con

27-04-2026 17:16

Lothar Krieglsteiner Lothar Krieglsteiner

.. Algarve, moist lying.The conidiomata look like

27-04-2026 12:54

Steve Clements

Bonjour. Ce petit champignon blanc résupiné et

27-04-2026 09:59

Pauline. Penna

Bonjour Can anyone advise me on these pycnidia fo

26-04-2026 21:08

William Slosse William Slosse

Several species of Ramularia occur on Rumex that I

22-04-2026 20:54

Enrique Rubio Enrique Rubio

Hi to everybody.This Pyrenopeziza grew in moist le

25-04-2026 11:34

Louis DENY

Bonjour forumdans la clé de Zotto, L. pudicellum

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Hymenoscyphus de Bouverans
Gilbert MOYNE, 03-10-2013 19:05
Voici un Hymenoscyphus qui me pose bien des problèmes:
Sur branche morte de feuillu (peut-être saule) en bordure d'une bauge à sanglier, Bouverans (Doubs), Montagne du Laveron, 800 m, 02/10/2013.
Apothécies 3-5 mm de diamètre, courtement stipitées, grégaires. Hyménium jaune d'or pâle, jaune paille. Stipe de moins de 1 mm, un peu brun à la base.
Asques cylindriqyues à claviformes, avec crochets, J+, 130-140 x 9-10 µm
Paraphyses cylindriques, non élargies au sommet (3-4 µm), peu septées, farcies de gouttelettes jaunes.
Spores elliptiques à scutuloïdes, parfois légèrement comprimées au centre, contenant de nombreuses gouttelettes, 15-19 x 4,5-6 µm
J'arrive du côté de H. epiphyllus ou H. laetus mais sans aucune certitude.
Merci de votre aide
Gilbert
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  • message #25329
  • message #25329
  • message #25329
Hans-Otto Baral, 03-10-2013 19:44
Hans-Otto Baral
Re : Hymenoscyphus de Bouverans
Cher Gilbert

I am convinced that this is Hymenosc. subferrugineus. Quite a common species especially in the region around the Alps, but it occurs also in England and Scandinavia, from where it was originally described by Phillips (on bark, as Hymenoscypha broomei) and Nylander (on branch of Ribes alpinum). 

The spores are slightly scutuloid, with an asymmetry at the apex, so that it is possible to say which is the upper and lower end. This is not possible in H. epiphyllus and H. laetus.

Zotto
Gilbert MOYNE, 03-10-2013 20:48
Re : Hymenoscyphus de Bouverans
Bonsoir Zotto,
Un grand merci  pour la détermination et pour les explications.
Gilbert
Michel Hairaud, 03-10-2013 21:06
Michel Hairaud
Re : Hymenoscyphus de Bouverans
Bonsoir Gilbert et Zotto, 

Ton intérêt pour les Helotiales maintenant fait plaisir à voir, Gilbert !

Je n'ai pas l'habitude de cette espèce à l'ouest de la France , alors que epiphyllus y est très commun . Peut être devrais je reprendre l'étude de certaines récoltes non abouties... Do you know, Zotto, whether the finds in England and Northern Europe wera collected in mountainous areas ?

Amitiés
Michel
Hans-Otto Baral, 03-10-2013 21:30
Hans-Otto Baral
Re : Hymenoscyphus de Bouverans
Hi Michel

I am likewise pleased about Gilbert's passion :-) 

To your question: Ribes alpinum sounds so, and H. broomei was collected in Somersetshire (unlocalized). Ah, there is a further synonym: Helotium sublateritium Berk. & Broome from Scotland, Angus, Glamis. you know these old Guys were usually rather unprecise with their localities.

I frequently collected this species in the Calcarean Alps, but it occurs also in lowlands, for instance near Tübingen, Heidelberg or Chemnitz (all in colline altitude). Also in Asturias at Picos de Europa or Huesca, Pyrenees.

Forgot to add that H. calyculus is not easily separable. I still believe the two are different. interestingly, we have several sequences of H. subferrugineus and they are all practically identical. Also some of H. calyculus exist but these are rather different from each other and should concern different species, but all are quite distant from subferrugineus.

Zotto
Marcel Vega, 03-10-2013 23:00
Re : Hymenoscyphus de Bouverans
Hi Zotto and Michel,
I will pay a visit to Gilbert soon and take care that he won't plunge into such odd stuff like Hymenoscyphus all too much!
You're welcome!
Marcel
Michel Hairaud, 03-10-2013 23:26
Michel Hairaud
Re : Hymenoscyphus de Bouverans
Thanks Zotto, 
H. calyculus and subferrugineus seem very close indeed.  

(Marcel, I feel sure you will also appreciate inoperculates once you will have tasted Helotiales :-) 

Michel


Marcel Vega, 03-10-2013 23:43
Re : Hymenoscyphus de Bouverans
Already tried this wine:tasted like vinegar, dear Michel.
But who knows maybe a pastime for life after death?
M.