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25-02-2023 18:36

Elisabeth Stöckli

Bonsoir, Trouvé sur un tronc de Salix recouvert

05-07-2025 12:38

Åge Oterhals

I found this pyrenomycetous fungi in pine forest o

01-06-2025 09:37

Charles Aron Charles Aron

Hi All, I found this Octospora growing with liver

06-07-2025 19:36

Castillo Joseba Castillo Joseba

me mandan el material de Galicia (España) recolec

07-07-2025 19:22

David Chapados David Chapados

Hi,Does anyone know what could this anamorph be?ht

02-07-2025 18:45

Elisabeth Stöckli

Bonsoir,Sur feuilles d'Osmunda regalis (Saulaie),

04-07-2025 20:12

Josep Torres Josep Torres

Hello.A fungus growing on the surface of a trunk o

20-06-2025 08:33

Josep Torres Josep Torres

Hello.Small, blackish, mucronated surface grains s

28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

04-07-2025 12:43

Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

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On Populus outer bark
Elsa Sousa, 04-07-2017 23:15
Good evening,

Spores:

(57.1) 58.4 - 67 (72.9) × (14.9) 15.9 - 20.4 (21.2) µm
Q = (2.9) 3.2 - 3.9 (4.4) ; N = 16
Me = 63.6 × 17.8 µm ; Qe = 3.6

multiseptate and guttulate.

I would appreciate any help.
Thank you very much.
Regards,
Elsa
  • message #49570
  • message #49570
  • message #49570
  • message #49570
  • message #49570
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Gernot Friebes, 04-07-2017 23:18
Re : On Populus outer bark
Hi Elsa,

I would look around Navicella.

Best wishes,
Gernot
Elsa Sousa, 04-07-2017 23:46
Re : On Populus outer bark
Thank you Gernot, I don't find any description or keys for Navicella. Spores are very close to Navicella pileata (the only one I find something about), but I don't know if it could be this one, could it be?

Elsa
Klaus Siepe, 07-07-2017 10:32
Re : On Populus outer bark
Hi Elsa, the only key I know is in M.E.Barr's "North American flora. Series II". But key is a great word for two species. There seems to be another species, N. xinjiangenis, described by Yuan & Zhao (1994) from China. It seems to be close to N. pileata and N. elegans, but has narrower and longer asci [(95-)150-265(-300) x (16)-20-30(-40) in N. pileata vs. 287-355 x 14,3-17,5 µm and narrower ascospores: 47,5-62,5 x 10-12,5 µm, 5-7 (mostly 7) septate.
Regards,
Klaus
Elsa Sousa, 08-07-2017 20:19
Re : On Populus outer bark
Thank you Klaus for your explanation and keys. With this I think that I can call it N. Pileata at least for now.