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Uredo rhagodiae Cooke & Massee

Description
Uredinia on lower leaf surface, subepidermal, erumpent, round or ellipsoidal, up to 2.5 mm, yellowish brown to reddish brown.

Urediniospores globose, subglobose, ellipsoidal or obovoid, yellowish brown, 21‒28 × 19‒23 µm; wall 2‒3 µm thick, echinulate, with 4‒8 scattered germ pores.

Hosts
Host family: Chenopodiaceae
Host species: Rhagodia candolleana

Distribution
TAS, VIC

Comments
Uredo rhagodiae was described on Rhagodia billardieri (=Chenopodium baccatum) from Australia by Cooke and Massee (in Cooke 1887). Uredo rhagodiae is one of seven species of rust that occur on host plant species in the Chenopodiaceae in Australia. The other are P. arthrocnemi, P. bassiae, P. dielsiana, P. kochiae, P. sclerolaenae and Uromyces salsolae.

Highslide JS
Uredo rhagodiae on Rhagodia candolleana - BRIP 60078.
Highslide JS
Uredo rhagodiae on Rhagodia candolleana - BRIP 60078.
Scale bar = 1 cm.
Highslide JS
Urediniospores of Uredo rhagodiae on Rhagodia candolleana - BRIP 60078.
Scale bar = 10 µm.