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05-02-2026 06:43

Stefan Blaser

Hello everybody, Any help on this one would be mu

03-02-2026 20:44

Zetti Mario

When I first saw this white mould on an Agaricus s

18-08-2025 15:07

Lothar Krieglsteiner Lothar Krieglsteiner

.. 20.7.25, in subarctic habital. The liverwort i

02-02-2026 21:46

Margot en Geert Vullings

On a barkless poplar branch, we found hairy discs

02-02-2026 14:55

Andgelo Mombert Andgelo Mombert

Bonjour,Sur thalle de Lobaria pulmonaria.Conidiome

02-02-2026 14:33

Andgelo Mombert Andgelo Mombert

Bonjour,Sur le thalle de Peltigera praetextata, ne

31-01-2026 10:22

Michel Hairaud Michel Hairaud

Bonjour, Cette hypocreale parasite en nombre les

02-02-2026 09:29

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pour cette récolte de 2

01-02-2026 19:29

Nicolas Suberbielle Nicolas Suberbielle

Bonjour, Marie-Rose D'Angelo (Société Mycologiq

30-01-2026 22:49

éric ROMERO éric ROMERO

Bonjour tous, Récolté dans les Vosges le 22/10/

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Venturia cassandrae
Nina Filippova, 10-03-2013 13:22
Venturia cassandrae (Gibbera cassandrae)

It is common inhabitant of Chamaedaphne leave litter in bogs. My specimen has some smaller spores compared with the description in Barr (1968) 15,5-21 x (4,5)6-9.

Perithecia pear-shaped,  80 x 60 mk; sited at the surface ir partly  immersed, often arising from under epidermal scales; overall brownish, at the narrowed tip darker to black, tip surrounded by sharp, bent bristles; leaf surface with frbs sometimes devided by black lines.
Excipulum from angular cells near  10 mk; bristles straight or bent down, for 45 long, 5 broad at base, sharp; asci fisitunicate, near 30-40 x 10 (unexpanded); spores 2-celled, upper cell wider and shorter, brown, guttulate, 14 (12,5-16) x 4,7 (4,1-5,7) (N=32).
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