Puccinia verruca von Thümen, 1879

on Centaurea

Puccinia verruca: teliospores

Centaurea scabiosa, from González Fragoso (1924a): teliospores

gall

no host plant alternation, only telia. Telia mainly hypophyllous, dark brown, pulvinate, on strongly discoloured spots. Spores two-celled, smooth, on a persistent pedicel of up to 60 µm; distal wall of the top cell strongly thickened.

hostplants

Asteraceae, narrowly oligophagous

Carthamus lanatus, tinctorius; Centaurea jacea, kotschyana, napifolia, phrygia, pullata, scabiosa & subsp. spinulosa, seridis subsp. sonchifolia, sicula, stoebe; Cyanus mollis, montanus

references

Blumer (1946a), Brandenburger (1985a), Buhr (1964b), Gäumann (1959a), González Fragoso (1924a), Klenke & Scholler (2015a), Poelt & Zwetko (1997a), Termorshuizen & Swertz (2011a), Tomasi (2014a).

mod 9.viii.2018