about this key identify a rust fungus browse rust fungi host index records & references  

Uromyces scaevolae G. Cunn.

Description
Aecia amphigenous, orange to white, peridium present.

Aeciospores globose or subglobose, hyaline to subhyaline, 14‒19 × 13‒16 µm; wall 1 µm thick, punctate to verruculose, with one germ pore present.

Telia on stems and both leaf surfaces, subepidermal, erumpent, linear, up to 1.2 cm, black.

Teliospores ellipsoidal, obovoid or clavate, apex acuminate or rounded, yellowish brown, 28‒41 × 14‒24 µm; wall 1‒3 µm thick at sides, 3‒9 µm thick at apex, smooth, with persistent pedicel, up to 37 µm.

Hosts
Host family: Goodeniaceae
Host species: Selliera radicans

Distribution
TAS

Comments
Berkeley (1872) described U. puccinioides on Selliera radicans from South Australia. However the name U. puccinioides was an illegitimate homonym of an unrelated rust. Cunningham (1930) provided a new name, U. scaevolae, for this rust. The host range of U. scaevolae was extended to include Scaevola sp. (McAlpine 1906). It is likely that the rusts on Selliera and Scavola are different and part of a complex of closely related species on Goodeniaceae (McTaggart et al. 2014). Uromyces scaevolae is distinguished from other rusts on Goodeniaceae as it has one-celled teliospores and occurs on Selliera.


Highslide JS
Aecia of Uromyces scaevolae on Selliera radicans - BRIP 60096.
Highslide JS
Telia of Uromyces scaevolae on Selliera radicans - BRIP 60096.
Highslide JS
Aeciospores of Uromyces scaevolae on Selliera radicans - BRIP 60096.
Scale bar = 10 µm.
Highslide JS
Peridial cells of Uromyces scaevolae on Selliera radicans - BRIP 60096.
Scale bar = 10 µm.
Highslide JS
Teliospores of Uromyces scaevolae on Selliera radicans - BRIP 60096.
Scale bar = 10 µm.