Pucciniastrum arcticum Tranzschel, 1895

Fungi, Basidiomycota, Pucciniomycetes, Pucciniales, Pucciniastraceae

on Rubus

gall

only uredinia and telia known. Uredinia hypophyllous, yellowish, often covering the entire leaf; they are sub-epidermal, spores are liberated through a small pore; urediniospores pedicellate, hyaline, finely echinulate. Telia also hypophyllous, sub-epidermal, brown; teliospores ± globular, smooth, without pedicels.

hostplants

Rosaceae, narrowly monophagous

Rubus arcticus, ? chamaemorus, saxatilis.

notes

in arctic North America host alteration occurs with Picea glauca; this has not been observed in the European Arctic.

references

Buhr (1964b) Gäumann (1959a), González-Fragoso (1925a), Helfer (2005a) Klenke & Scholler (2015a).

25/04/2017

mod 28.vi.2017