Helicobasidium purpureum

Formerly known as Tuberculina persicina, a rust mycoparasite, in this case parasitizing specimens of Puccinia phragmitis on a leaf of Rumex obtusifolius.

Sporodochia forming clumped masses rupturing the tissues of the Puccinia.

Conidiophores vertically arranged, hyaline, cylindrical, unbranched, 25-30 µm long and 4-6 µm wide, forming a palisade.

Conidia spherical to subglobose, thick-walled, hyaline to faintly tinged with purple hues, with faint granular internal content.