03-09-2012 04:20
Esquivel-Rios EduardoHi.Did someone knows about Phylacia genera (Xylari
02-09-2012 23:06
Camporesi ErioHi to all, did someone already collect a
02-09-2012 17:18
Enrique Rubio
Hi to everybodyI'd like to know your opinion about
29-08-2012 18:47
Enrique Rubio
Hi to allThese small and narrowly sessile ascomata
31-07-2012 17:17
Alex Akulov
Dear FriendsCan you help me with the identificatio
20-08-2012 21:31
Bernard Declercq
Hi,A friend of mine sent me a collection on decort
27-08-2012 11:48
Alessio Pierotti
According Mycobank some Polystigma, such as P. tru
26-08-2012 20:46
Nicolas VAN VOOREN
Bonjour.Trouvé dans un ruisseau, sur bois mort à
20-04-2012 18:26
Gernot FriebesHi, I have never found E. cerviculata so I would a
A Phylacia from Panama
Esquivel-Rios Eduardo,
03-09-2012 04:20
Did someone knows about Phylacia genera (Xylariales), a gasteroid ascomycete, this is posible a new specie from Panama.
Peter Welt,
03-09-2012 10:43
Re : A Phylacia from Panama
Have no idea of this genus, but a key is available here:
http://www.cybertruffle.org.uk/cyberliber/index.htm
Medel, R.; Rogers, J.D.; Guzman, G. (2006) - Phylacia mexicana sp.nov. and consideration of other species with emphasis on Mexico. Mycotaxon 97: 279-290.
Peter
http://www.cybertruffle.org.uk/cyberliber/index.htm
Medel, R.; Rogers, J.D.; Guzman, G. (2006) - Phylacia mexicana sp.nov. and consideration of other species with emphasis on Mexico. Mycotaxon 97: 279-290.
Peter
Jacques Fournier,
03-09-2012 15:04
Re : A Phylacia from Panama
Hi Eduardo,
nice find and nice photos, very informative. Externally the best match seems to be P. globosa, already known from Panama, but it would help to have also the spores dimensions. Better to record them on spores accumulating at the top of the stroma just beneath the crust because they are mature and pale brown, unlike the ones you recorded. The paper by Medel et al. is useful but unfortunately they did not record and use in their key the pigments released by the stroma in 10% KOH. They vary from shades of olivaceous to purplish and they are highly diagnostic. Just pick up a small chip of the external crust of mature stroma and put in in a drop of KOH, you should get a nice reaction within a minute.
Cheers,
Jacques
nice find and nice photos, very informative. Externally the best match seems to be P. globosa, already known from Panama, but it would help to have also the spores dimensions. Better to record them on spores accumulating at the top of the stroma just beneath the crust because they are mature and pale brown, unlike the ones you recorded. The paper by Medel et al. is useful but unfortunately they did not record and use in their key the pigments released by the stroma in 10% KOH. They vary from shades of olivaceous to purplish and they are highly diagnostic. Just pick up a small chip of the external crust of mature stroma and put in in a drop of KOH, you should get a nice reaction within a minute.
Cheers,
Jacques