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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 22:22

Tatraea sp. on indet. hardwood - 303452087
Danny Newman Danny Newman

Tatraea sp. on indet. hardwood The Swag, Great Sm

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 10:05

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

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Black ascomycete on Fraxinus
Pavol Palo, 12-03-2014 20:26
Hello friends,

may I ask you for help ? I would need some idea or opinion.

 


Fruitbody: on dead deciduous branches (Fraxinus sp.) diam. 0,2-0,5 mm.


Ascii: 40-45 x 3-4 µm ... 8 spores - biserial


Spores: 4-6 x 2-2,5 µm 


Paraphyses: diam. 1-2 µm ... >100 µm


Subiculum diam. to 10 µm 


 


Regards 


Pavol

  • message #28173
  • message #28173
  • message #28173
  • message #28173
Christian Lechat, 12-03-2014 20:45
Christian Lechat
Re : Black ascomycete on Fraxinus
This looks like Nitschkia confertula which is known on Fraxinus but the size of ascospore does not fit.
Christian
Peter Püwert, 12-03-2014 20:51
Peter Püwert
Re : Black ascomycete on Fraxinus
Hello Pavol,
in my opinion is this Nitschkia confertula (Schw.) Nannf. The spores may a little longer.
Greetings Peter.
Pavol Palo, 12-03-2014 21:33
Re : Black ascomycete on Fraxinus
Thank you very much
Pavol Palo, 12-03-2014 21:36
Re : Black ascomycete on Fraxinus

Thank you very much


 


 


p.s. I will try prepare new micro (mayby this is immature)