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26-01-2026 11:49

Margot en Geert Vullings

We found this possible anamorph on a dead Cytisus

25-01-2026 23:23

Tomaz Vucko Tomaz Vucko

Hello! I found this species that resembles Delitsc

18-01-2026 12:24

Josep Torres Josep Torres

Hello.An anamorph located on the surface of a thin

25-01-2026 16:08

Malcolm  Greaves Malcolm Greaves

This Geoglossum had spores mostly 70-80 (87) with

23-01-2026 21:50

Cameron DK

I am looking for this please publication. is anyon

10-01-2026 20:00

Tom Schrier

Hi all,We found picnidia on Protoparmeliopsis mur

21-01-2026 19:55

Bohan Jia

Hi,  Could this be Nemania aureolutea? Or did I

21-01-2026 16:32

Gernot Friebes

Hi,I need your help with some black dots on a lich

21-01-2026 16:48

Gernot Friebes

Hi,after my last unknown hyphomycete on this subst

20-01-2026 17:49

Hardware Tony Hardware Tony

I offer this collection as a possibility only as e

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Leptosphaeria (Phaeosphaeria)
Enrique Rubio, 27-11-2006 19:53
Enrique RubioJ'aimerais connaître une opinion sur cette espèce de Leptosphaeria (Phaeosphaeria) qui croît sur des tiges d'Ammophila arenaria. Les spores, avec 5 (4) septa, mesurent 25-30 x 7.
J'ai pensé qu'il pourrait s'agir de Leptosphaeria larseniana Munk.
Merci à tous
I would like to know some opinion about this Leptosphaeria species (Phaeosphaeria) that grows on stems of Ammophila arenaria. The spores, with 5 (4) septa, measure 25-30 x 7.
Might he be Leptospharia larseniana Munk?
Thanks to all
  • message #1032
NC NC, 27-11-2006 21:29
Re:Leptosphaeria (Phaeosphaeria)
Certaines ostioles me paraissent allongées sur la photo ? Je penserais à un Lophiostoma. caulium par exemple qui doit avoir 5 cloisons. Mais ce n'est qu'une idée vague peut-être basée sur une illusion d'optique !
Amitiés
Robert
NC NC, 27-11-2006 21:49
Re:Leptosphaeria (Phaeosphaeria)
Try Phaeosphaeria vagans, where spores sometimes lack vertical septa, occuring on Ammophila.

Regards,

Bernard Declercq
Enrique Rubio, 28-11-2006 19:18
Enrique Rubio
Re:Leptosphaeria (Phaeosphaeria)
Des amis Bernard et Robert :
Mes ascomata, semiimmergés, possèdent des papilles allogées, parfois latéralement comprimés, mais dans les cellules des spores je ne vois pas des vertical septa. Est-ce que cela peut succéder dans Phaeospharia vagans ? .
Merci par votre amicale aide
Christian Lechat, 08-12-2006 13:51
Christian Lechat
Re:Leptosphaeria (Phaeosphaeria)
Dear friends,
I think that is : Lophiostoma caudatum Fabre
Best wishes, :)
NC NC, 08-12-2006 18:08
Re:Leptosphaeria (Phaeosphaeria)
Dear all,

as far as Erique explained us that the ascomata have flattened ostiola, we have to look indeed in to one of following genera: Lophiostoma, Lophiotrema, Massariosphaeria. The problem here is, and taht is the reason why I sent no further comments, that species known to me are guttulate and I did not observe guttulae on the photo. I thought the L. caudatum spores are more "caudate" than what we see here but Chesters & Bell (1970) already mentioned that several forms occur which got in the past distinct names. I do not know if some more recent study gave us better insight on this "complex". So I think for the moment being that Christian gave us the right answer.

Best regards,

Bernard Declercq
Enrique Rubio, 08-12-2006 19:39
Enrique Rubio
Re:Leptosphaeria (Phaeosphaeria)
Merci à tous par vos commentaires. Quelques Pyrenos sont vraiment difficiles!