21-05-2014 20:07
Marcus YeoI recently found this discomycete growing on dead
03-06-2014 15:44
Malcolm Greaves
Not the best time to be posting a Scutellinia with
05-06-2014 20:56
Andrew N. Miller
Dear All, This paper with a key to species of He
05-06-2014 20:19
Rodríguez Borja
Hi everybody!I have these cupulate apothecia (2cmm
05-06-2014 11:44
Quijada Luissorry, before I forget it would be great if somebo
05-06-2014 11:11
Quijada LuisHi all, Nowadays I am working in the genus Discin
05-06-2014 00:21
Malcolm Greaves
Someone asked me to look at this Scutellinia found
02-06-2014 19:35
François BartholomeeusenDear all,FRB found on dead stems of urtica, moist
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!