Plant Parasites of Europe

leafminers, galls and fungi

Phragmidium arcticum

Phragmidium arcticum Lagerheim, 1908

Fungi, Basidiomycota, Pucciniomycetes, Pucciniales

on Rubus

gall

no alternation of hostplant. Aecia mostly hypophyllous, yellow, minute but larger on the veins, surrounded by hyaline, sausage-shaped curved paraphyses; spores produced in chains, sparsely verrucose. Uredinia like the aecia, but spores single, pedicellate. Telia hypophyllous black; spores long pedicellate, elliptic, dark brown, transversely divided into (4)6-7(9)6, finely verrucose cells, terminated by an apiculus; pedicel hygroscopic.

hostplants

Rosaceae, narrowly monophagous

Rubus arcticus.

references

Gäumann (1959a), Helfer (2005a).

28/06/2016

Last modified 28.vi.2017