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Puccinia hypochoeridis Oudem.

Description
Uredinia on stems, subepidermal.

Urediniospores globose, subglobose or ovoid, yellowish brown, 22‒27 × 21‒25 µm; wall 2‒4 µm thick, sparsely and finely echinulate, with 2 scattered germ pores.

Telia on stems, form in the uredinia, subepidermal, erumpent, linear to ellipsoidal, up to 2.5 mm long, black.

Teliospores cylindrical or broadly ellipsoidal, 1 or 2 celled, reddish brown to brown, 27‒39 × 18‒25 µm; wall 1.5‒4.0 µm thick, smooth, pedicel persistent or breaks leaving part of pedicel attached, up to 75 µm.

Mesospores ellipsoidal to oval, reddish-brown, 29 × 19 µm.

Hosts
Host family: Asteraceae
Host species: Hypochaeris sp.

Distribution
WA

Comments
Puccinia hypochoeridis
is common in Australia on its hosts, the naturalised and weedy Hypochoeris glabrus and H. radicata. Puccinia  hypochoeridis was first reported from Australia in 1895, as P. microseris, which is a synonym based on a host misidentification (McAlpine 1906).