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10-06-2026 23:08

éric ROMERO éric ROMERO

Bonjour tous, Je vous propose un Mollisia trouvé

10-06-2026 12:54

Steve Clements

Bonjour encore, Pouvez-vous m'aider, s'il vous pl

09-06-2026 18:32

Camille Mertens

Sur morceau de roseau immergé 0,5 - 0,7 mm de dia

10-06-2026 21:16

François Freléchoux François Freléchoux

Bonsoir,Le dernier du jour, en attendant votre avi

10-06-2026 21:07

François Freléchoux François Freléchoux

Toutes les tiges de gentianes jaunes de l'an passÃ

10-06-2026 13:41

François Freléchoux François Freléchoux

Bonjour à nouveau, Voici une trouvaille d'hier.

10-06-2026 11:53

Steve Clements

Bonjour, This disco is abundant on dead stems of

10-06-2026 10:45

François Freléchoux François Freléchoux

Bonjour à nouveau, Encore une détermination qui

08-06-2026 10:16

Spooren Marco Spooren Marco

I don`t have a clou about this fungus,it is not in

10-06-2026 09:24

François Freléchoux François Freléchoux

Bonjour, J'imagine que cette détermination ne do

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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
  • message #49570
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.