20-06-2014 13:49
Nina FilippovaHello. This species was overmature, lacking any sp
19-06-2014 20:58
Enrique Rubio
Bonsoir a tous mais mais en particuliere á Jacque
20-06-2014 09:46
Nina FilippovaI have showed earlier this species, which is abund
15-06-2014 11:52
Rubén Martínez-Gil
Hola a todos. Ayer encontramos estos ascos sobre
10-06-2014 11:51
Marja PennanenHello,these grey ascos grow on Pteridium aquilinum
18-06-2014 09:15
Marja PennanenHello,I found these small hairy, very light colour
12-06-2014 20:05
Enrique Rubio
HI to all This a an older friend of us that grows
17-06-2014 15:18
Alex Akulov
Dear FriendsBecause of life circumstances for more
Interesting Perithecia from leaves of Ledum palustre
Nina Filippova,
20-06-2014 13:49
Coordinates: N60,891352° E68,690042°, 16.06.2014.
Perithecia on lower side of the leaf, scattered, submerged under epidermis with protruding neck, up to 400 mk high, perithecium about 150 mk in diameter, neck about 30-40 mk broad, with collar up to 100 mk.
Outer peridium from brown angular cells, covered with outgrowing hyphoid brown setae up to 200 mk long, 7 mk broad at base; neck covered by parralel brown hyphae 3-4 mk broad, in upper part of the neck these hyphae create rosette; spores cubical, about 6.7 x 6.3 mk, with thin wall on two opposite sides.
Paul Cannon,
20-06-2014 14:03
Re : Interesting Perithecia from leaves of Ledum palustre
This is a species of Scopinella - possibly S. solani but it's a long time since I worked on them. They are ascospores rather than conidia - the asci deliquesce at an early stage.
Nina Filippova,
20-06-2014 14:39
Re : Interesting Perithecia from leaves of Ledum palustre
Thank you, Paul. I will look later in literature for exact identification.
Nina.
Nina.
David Malloch,
20-06-2014 15:13
Re : Interesting Perithecia from leaves of Ledum palustre
Hi Nina,
This may be S. barbata Lév.
My notes say:
"Growing on decaying oak leaves in Europe and Algeria. Asci 8-spored. Ostiolar hyphae extending well beyond the fused portion of the neck and forming a basket-like arrangement holding spores. Lateral hairs of the ascomata not spine-like and fused in groups of only 2 or 3. Spores more than 5-6um long"
It may not be restricted to oak leaves; there are probably not enough reports of this species in the literature to be sure about substrate-specificity.
Dave
This may be S. barbata Lév.
My notes say:
"Growing on decaying oak leaves in Europe and Algeria. Asci 8-spored. Ostiolar hyphae extending well beyond the fused portion of the neck and forming a basket-like arrangement holding spores. Lateral hairs of the ascomata not spine-like and fused in groups of only 2 or 3. Spores more than 5-6um long"
It may not be restricted to oak leaves; there are probably not enough reports of this species in the literature to be sure about substrate-specificity.
Dave