Plant Parasites of Europe

leafminers, galls and fungi

gallers on Callianthemum

Dichotomous table for gallers on Callianthemum

by Hans Roskam

1a Leaves with bulging swellings on the surface of which develop ± yellowish or brown sori => 2

1b Bulges on leaves and stems, initially lead-grey translucent, later on rupturing and releasing a dusting of black spores. C. coriandrifolium: Urocystis callianthemi

2a Slightly thickened, above violet, below yellowish, brownish margined spots bearing dense aecia and spermogonia. Sori on midrib and petiole bulging. C. angustifolium, coriandrifolium: Puccinia sardonensis

2b ulges yellowish to brown-red, remaining closed for a long time, compact, often yellow- or red-margined; with dark telia. C. coriandrifolium:
Puccinia callianthemi
and/or P. kochiana

Last modified 24.vi.2020