Two new species of Preussia from Iran
Asgari, Bita; Zare, Rasoul
We describe two new species of Preussia from dead barley leaves, P. persica from Sarab district, and P. polymorpha from Osku district, both East Azerbaijan province of Iran. P. polymorpha is characterized by possessing polymorphic asci and ascospores; it has a Chrysosporium-like anamorph that is described for the first time in Preussia, characterized by micronematous to semi-macronematous, mononematous, simple to branched, small, sometimes proliferating conidiophores producing solitary, hyaline, smooth, ovoid to ellipsoidal conidia with truncated base. P. persica has hairy and translucent ascomata with 1-3 distinct, more or less long necks, and ascospores with narrowly rounded ends and a nearly parallel germ-slit with a kink near the middle. Phylogenetic analysis of the ITS region combined with the D1-D2 domains of the 28S rRNA gene also supports the recognition of these fungi as new species.