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07-01-2026 17:29

White tree-like anamorph on Populus
Marc Detollenaere Marc Detollenaere

Dear Forum,On a barkless Populus I found some smal

10-11-2021 17:33

anamorph Chlorociboria aeruginella
Riet van Oosten Riet van Oosten

Add-on topic http://www.ascofrance.com/forum/7059

07-01-2026 10:24

Pezicula sp. on indet. hardwood - 303870019
Danny Newman Danny Newman

Pezicula sp. on indet. hardwood Appalachian Highl

07-01-2026 10:05

cf. Chaetospermum on Xylaria - 303631739
Danny Newman Danny Newman

cf. Chaetospermum on XylariaCosby Campground, Grea

06-01-2026 20:54

Gymnoascus ?
Thierry Blondelle Thierry Blondelle

Bonjour à tous et meilleurs voeux pour cette nouv

02-01-2026 17:43

Spores with a sheath
MARICEL PATINO

Hi there, although I couldn't see the fruitbody, I

04-01-2026 17:45

Pithya cupressina with large apothecia looking like P. vulgaris.
Stephen Martin Mifsud Stephen Martin Mifsud

I was happy to find these orange asmocyetes which

02-01-2026 22:48

Calycina languida ?
éric ROMERO éric ROMERO

Bonjour tous, Je profite de cette nouvelle demand

02-01-2026 19:35

Thysanophora?
William Slosse William Slosse

Good evening everyone,First of all, my best wishes

03-01-2026 13:08

Lichenicolous fungus on Myriolecis spec.
Niek Schrier

Hi all,We found groups of perithecia on a Lecanora

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Bitunicate pyreno on Ammophila arenaria
Enrique Rubio, 07-01-2014 20:46
Enrique Rubio

Hi to all


Can you help me with this pyreno with roundish black and subsuperficial pseudothecia up to 0.3 mm on stems of Ammophila arenaria growing on coastal sand dunes?


The bitunicate asci are (4)-8 spored and the greenish ascospores seem to be smooth. Pseudoparaphyses are present.


I think this fungus could be in the genera Amphisphaeria or Didymosphaeria. What do you think?


Thanks again

  • message #26654
  • message #26654
  • message #26654
Jacques Fournier, 07-01-2014 21:03
Jacques Fournier
Re : Bitunicate pyreno on Ammophila arenaria
Hola Enrique,
rather Didymosphaeria because of the apparently distoseptate ascospores. You should first be sure that asci are bitunicate, which is not obvious from your photos.
Cheers,
Jacques
Enrique Rubio, 07-01-2014 21:08
Enrique Rubio
Re : Bitunicate pyreno on Ammophila arenaria

Thank you Jacques. I think the asci are not unitunicate altough my photos of them are not good.


Regards