Plant Parasites of Europe

leafminers, galls and fungi

Ustanciosporium gigantosporum

Ustanciosporium gigantosporum (Liro) Piepenbring 2000

on Rhynchospora


the anthers and ovaries are modified into a black mass of spores, still enclosed by the glumes. Spores 14-21 x 17-20 µm. The infection is systemic, infected plants are dwarfed, the shape of the flowers is abnormal.

host plants

Cyperaceae, monophagous

Rhynchospora alba.


Cintractia gigantospora Liro, 1935; Ustilago rhynchosporae Sauter, 1854 (niet: Ustanciosporium rhynchosporae Vánky, 1999).


Brandenburger (1985a: 864), Klenke & Scholler (2015a), Riegler-Hager (2005a), Spooner & Leon (2006a), Vánky (1994a).

Last modified 18.xii.2022