11-02-2016 17:27
Jac GelderblomSur bois de chêne j'ai trouve une petite discomyc
11-02-2016 20:28
Castillo Joseba
discos de color amarilloAlguna sugerenciaSaludosJo
04-02-2016 06:04
Danny Newman
http://mushroomobserver.org/230585Trichopeziza?Onl
07-02-2016 21:34
Francisco SÁNCHEZ
Collect 31/01/2016, on burnt ground, under burning
09-02-2016 20:32
William Slosse
growing on fallen dead branches of birch in old du
08-02-2016 20:45
Ralf Dahlheuser
Hello together,I have found these black asco on ro
what do you thing about Daldinia cf. fissa ?
Regards
Pavol
p.s.
On death standing tree (Alnus glutinosa)
Fruitbody: max. 50 x 40 x 40 mm
The white line on cut max. diam 1 mm
The perithecia 800-1000 x 300-400 µm
The asci are 8 spores 150-250 x 9 µm
The apical ring 3-4 x 0,5-1 µm ( in Melzer = blue )
The ascospores (12)14-15(16) x 6-7 µm
In 10% KOH pigment is purple / violaceous
A polyphasic taxonomy of Daldinia (Xylariaceae)
http://www.studiesinmycology.org/content/77/1/1.full
this is most likely D. petriniae, at least a member of the complex of closely related species. I was not aware it occured as early as mid June at ascigerous state.
D. vernicosa has a gelatinous interior that turns hollow and differently shaped and darker ascospores.
Cheers,
Jacques
Thank you very much
Pavol