Hymenoscyphus - Forum ASCOFrance

02-02-2026 21:46

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Hi!Anyone that have this one and can sen it to me?

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Amniculicola

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pyrenomycete on dead parts of foliose liverwort from Norway

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Hymenoscyphus

Yannick Mourgues, 31-08-2009 21:07

Bonsoir.

J'aimerai votre avis sur cet Hymenoscyphus trouvé sur tiges mortes de Rubus.

Spores : 20x5 um environ bien qu'il n'y en avait que très peu. 1 cloison avec 2 guttules dans chaque partie. De forme "scutuloide".
Asques IKI+, 100-110x6-10 um, boucles +
paraphyses à sommet arrondi, septées, larges de 3-4 um, remplies de guttules réfringentes

Yannick

Yannick Mourgues, 31-08-2009 21:08

Re:Hymenoscyphus

autre vue avec exemplaires plus âgés...

Yannick Mourgues, 31-08-2009 21:09

Re:Hymenoscyphus

vue de profil

Yannick Mourgues, 31-08-2009 21:09

Re:Hymenoscyphus

paraphyses...

Yannick Mourgues, 31-08-2009 21:24

Re:Hymenoscyphus

Hymenoscyphus calyculus serait un bon candidat. Non ?

Hans-Otto Baral, 01-09-2009 00:04

Re:Hymenoscyphus

On Rubus I would not expect H. calyculus. Do you have a photo of the spores? Also the excipulum on the flanks should be consulted whether prismatica (calyculus) or globulosa (epiphyllus and relatives).

Zotto

Yannick Mourgues, 01-09-2009 00:22

Re:Hymenoscyphus

No, I haven't any picture of spores because they were too rare and I wasn't able to make a picture.
I will see excipulum textura.
Yannick

Yannick Mourgues, 01-09-2009 00:31

Re:Hymenoscyphus

Excipulum has a textura globulosa.
So, can we conclude Hymenoscyphus epiphyllus groups ?
Yannick

Yannick Mourgues, 01-09-2009 00:31

Re:Hymenoscyphus

Excipulum has a textura globulosa.
So, can we conclude Hymenoscyphus epiphyllus groups ?
Hymenoscyphus or Phaeohelotium ?
Yannick

Hans-Otto Baral, 01-09-2009 15:16

Re:Hymenoscyphus

Yes, you can say Phaeohelotium if one prefers to separate that genus. H. epiphyllus or H. monticola would be a choice. The multiguttulate paraphyses would tell for epiphyllus. Phaeohelotium do not have scutuloid spores, however. You cannot say which end of the spores is the upper end.

Zotto

Yannick Mourgues, 01-09-2009 18:14

Re:Hymenoscyphus

Thanks again Zotto !
Yannick

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