Thursday, May 19, 2011
Pyrenomycete from coniferous wood
I have this nice pyrenomycete with aggregated black immersed perithecia with and protruding ostioles from Picea (Pinus?) wood. Asci cylindrical, thin-walled, lacks apical apparatus, inamyloid, p. sp. 40-50 x 4-5 mym, not floating like in Diaporthe. Ascospores 8 per ascus, obliquely uniseriate, 7-8 x 2-3 mym, cylindrical, two-celled with central septum, rounded ends, greyish, with 2 small oil drops. Paraphyses simple, longer than asci, ca 1,5 mym broad. Peridium medium brown, of rounded cells ca 4 mym in diameter. Thankful for suggestions.
Posted by Björn Nordén at 19:21