Shivasia Vánky, M. Lutz & M. Piątek

Type

Ustilago solida Berk. on Chaetospora imberbis Penquite (= Schoenus apogon Roem. & Schult.)

Description

Sori in the flowers of Schoenus (Cyperaceae) forming hard, globoid, black bodies composed of spore balls and spores on the surface of innermost floral organs developed in sporogenous hyphae within U-shaped pockets, at first covered by a fungal peridium.

Spore balls few to many spored, composed of spores only, enclosed by a subhyaline mucilaginous layer.

Spores pigmented (brown).

Sterile cells absent.

Species in Australia
 
Shivasia solida

Key based on host taxonomy
 
On SchoenusShivasia solida