Puccinia ruebsaamenii Magnus, 1904

on Origanum

Puccinia ruebsaamenii: teliospores

Origanum vulgare, from González Fragoso (1924a): teliospores

gall

No host plant alternation, only telia. Telia predominantly on the stems, petioles and midribs, long covered by the epidermis, eventually black. Spores two-celled, short-elliptic, smooth. Infected shoots form conspicuous witches’ brooms, with stiffly erect branches and small, closely set leaves.

hostplants

Lamiaceae, monophagous

Origanum vulgare.

synonyms

sometimes considered synonymous with P. thymi.

references

Brandenburger (1985a: 537), Buhr (1965a), Gäumann (1959a), González Fragoso (1924a), Losa España (1942a), Schmid-Heckel (1985a), Termorshuizen & Swertz (2011a).

mod 7.viii.2018