Sporisorium catharticum (Maire) Vánky, 1989

on Cenchrus

gall

all ovaries in a spike are swollen and transformed into a black mass of spore balls around a central columella. The mass initially is covered by a thin membrane and the glumes. The spore balls, that easily fall apart, are 40-110 µm long and consist of a large number of spores.

hostplants

Poaceae, nauw monophagous

Cenchrus ciliaris.

references

Vánky (1994a).

mod 28.vii.2018