Puccinia schoeleriana Plowright & Magnus, 1885

on Senecio s.l.

Puccinia cf schoeleriana: aecia on Jacobaea vulgaris

Jacobaea vulgaris, Zwolle © Arnold Grosscurt; identification tentative, not confirmed by an infection test.

gall

spermogonia honey-coloured, in dense groups. Aecia hypophyllous in dense circles around the spermogonia; they are cupulate with white, outwards curved peridium segments. Locally the leaf is more or less swollen and coloured yellow or reddish, also at the upperside.

spermogonia, aecia

Asteraceae, narrowly oligophagous

Jacobaea vulgaris; Senecio viscosus, vulgaris.


on Carex

gall

uredinia hypophyllous, brown; urediniospores 18-24 x 25-30 µm, with 2-3 pores above the equator. Telia blackish brown, hypophyllous, soon naked. Teliospores two-celled, slender, with a smooth wall, that apically is strongly thickened. Pedicel long, persistent.

uredinia, telia

Cyperaceae, narrowly monophagous

Carex arenaria, colchica.

synonyms

Puccinia ligericae Sydow, 1892.

Many authors, including Termorshuizen & Swertz, and also the Index Fungorum (2016) consider schoeleriana conspecific with Puccinia dioicae, or a variety of it.

references

Brandenburger (1985a), Buhr (1965a), Gäumann (1959a), Henderson (2004a), Klenke & Scholler (2015a), Roskam (2009a), Termorshuizen & Swertz (2011a), Vanderweyen & Fraiture (2011a), Woods, Stringer, Evans & Chater (2015a).

mod 13.v.2018