Uromyces bidenticola Arthur,1917

on Bidens

gall

no host plant alternation, spermogonia unknown. Aecia amphigenous, numerous, in small groups, honey-yellow when fresh. Uredinia amphigenous, often in a circle around the aecia, cinnamon brown, echinulate, with 2, ± equatorial spores. Telia mainly hypophyllous, up to one mm, on discoloured spots, dark brown, pulverulent, soon naked. Teliospores 28-45 µm long, one-celled, oval, wall brown, thin, smooth; pedicel persistent, hyaliene, about twice the length of the spore.

hostplants

Asteraceae, monohpagous

Bidens pilosus.

synonyms

Klebahnia bidentis (Hennings) Arthur, 1915.

references

Arthur (1922a), Gjaerum (1982a, 1987a), Gjaerum & Dennis (1976a), Guatimosim, Pinto, Pereira, Fuga, Vieira & Barreto (2015a).

15/11/2016

mod 22.vii.2017