18-07-2025 23:03
Josep Torres
Hello.Fruitings between 51 and 130 microns in tota
16-07-2025 17:34
Bernard Declercq
Hello,I have trouble distinguishing above mention
14-07-2025 11:20
Michel Hairaud
Bonjour, Voici une espèce de (?) Hyaloscyphace
16-01-2023 21:31
Riet van Oosten
Hello, Nearby the find of Calycina claroflava on
14-07-2025 17:55
Yanick BOULANGERBonjourAutre dossier laissé en suspendJe viens de
14-07-2025 11:17
Yanick BOULANGERBonjourJ'ai un dossier Jackrogersella qui est rest
14-07-2025 15:52
Gernot FriebesHi,I wanted to share this collection on Rubus idae
14-07-2025 13:37
Gernot FriebesHi,do you think this collection could be R. ulmari
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.
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.
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!