I was asked by a colleaque to post here this pyrenomycete which he cannot identify: Zotto Pyrenomycet spec. (setose) Habitat:  Populus-stump,  Perithecia superficial in groups, pyriform, dark brown-black, thick-walled, soft, textura angularis, at the base with redbrown hyphae, setose at the upper part; setae erect, stiff, pluricellular (3-5-c.), thick-walled, fistular, smooth, golden-brown, rounded at the top, 189-204 x 9,8-12,3 µm. Asci 8-sp., clavate, obtuse, short-stalked, apex small, inamyloid (aqua dest. + Lugol), 120 x 18 µm. Paraph. numerous, hyaline, moniliform, cylindric and sometimes branched at the upper part. Spores 4-c., ellipsoid-fusiform, unicolorous, yellow-ochraceous, thin-walled, smooth, sometimes constricted in the middle, finely guttate, 29,5-31,9-33,5 x 8-8,5-9 µm (aqua dest., rehydrated).