26-11-2018 16:44
Lothar Krieglsteiner
... collected near the "Fuchsfarm" in the National
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Castillo Joseba
Me mandan desde Galicia material seco  encontrado
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Castillo Joseba
aMe mandan de Galicia esta muestra recogida en cor
27-11-2018 09:47
Castillo Joseba
Me mandan este material seco recogido en tallo deÂ
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Marc Detollenaere
Hello together, Â I found this anamorph with ve
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Elisabeth StöckliBonjour, Trouvé sur mousse (Hypnum/forêt alluvi
Two on Pinus sylvestris cones
Jenny Seawright,
19-02-2015 15:06
Hello all, I found some productive cones of Pinus sylvestris on a coastal heath but, once again, having problems with identification.
The first were perithecia, no hairs or setae present but some appeared to have slightly elongated necks. Spores were brown, 3-septate 16-20 x 6.6-7µm with narrow paraphyses. Some spores had lighter end cells.
Possibly Mytilinidion decipiens, though most references i've found to that have been from Juniper?
The second was erumpent - large brown spores with a germ slit not extending full length, 37-44 x 15-20 µm, no asci or paraphyses visible.
Help appreciated,
With regards
Jenny
Christian Lechat,
19-02-2015 16:33
Re : Two on Pinus sylvestris cones
Hi Jenny,
the second species could be Sphaeropsis sapinea.
Regards,
Chirstian
the second species could be Sphaeropsis sapinea.
Regards,
Chirstian
Björn Wergen,
20-02-2015 01:22
Re : Two on Pinus sylvestris cones
Hello Jenny,
If the asci of the first one are primarily biseriate, it can be Melanomma fuscidulum. Otherwise the common M. pulvis-pyrius may also be a suggestion.Â
Regards björn
If the asci of the first one are primarily biseriate, it can be Melanomma fuscidulum. Otherwise the common M. pulvis-pyrius may also be a suggestion.Â
Regards björn
Jenny Seawright,
20-02-2015 12:40
Re : Two on Pinus sylvestris cones
Thank you Christian and Björn, Sphaeropsis sapinea looks very probable for the second.
Most asci of the first were uniseriate but taking into account the spore size and presence of some (but not all) spores with pale end cells could Melanomma subdispersum be a possibility, or is that species specific to Betula?
With regards,
Jenny
Most asci of the first were uniseriate but taking into account the spore size and presence of some (but not all) spores with pale end cells could Melanomma subdispersum be a possibility, or is that species specific to Betula?
With regards,
Jenny
Björn Wergen,
20-02-2015 13:09
Re : Two on Pinus sylvestris cones
Well I do not think that M. subdispersum occurs on Pinus cones, as it is described mostly from Betula and Sorbus (Sivanesan 1984). M. pulvis-pyrius can surely have your meassured spore sizes and is very common on various hosts.
By the way: do you observe spores and asci under x600? Its not x1000, spores look so small that I first thought they ARE small.
regards,
björn
By the way: do you observe spores and asci under x600? Its not x1000, spores look so small that I first thought they ARE small.
regards,
björn
Jenny Seawright,
20-02-2015 14:45
Re : Two on Pinus sylvestris cones
Worse than that - x 400!