Rust Fungi of Southeast Asia

Physopella elephantopi (Hirats.) Sathe

Synonyms
Angiopsora elephantopi (Hirats.) Mundk. & Thirum.
Phakopsora elephantopi Hirats.

Description
Uredinia on both leaf surfaces and stems, subepidermal, erumpent, linear to round, yellow, paraphyses peripheral, cylindrical to clavate, hyaline to subhyaline, 36-51 × 9-11 µm; wall 1.5-3 µm thick at sides, 4-6 µm thick at apex.

Urediniospores globose, subglobose to ellipsoidal, yellowish brown, 20-27 × 19-23 µm; wall 1-2 µm thick, finely echinulate, germ pore inconspicuous.

Specimens cited in description:
- BRIP 58415

Hosts
Host family:
- Asteraceae

Host species:
- Elephantopus scaber

Distribution
Vietnam

Highslide JS
Physopella elephantopi on Elephantopus scaber - BRIP 58415.
Highslide JS
Physopella elephantopi on Elephantopus scaber - BRIP 58415.
Scale bar = 1 cm.
Highslide JS
Uredinia and paraphyses of Physopella elephantopi on Bridelia sp. - BRIP 58415.
Scale bar = 100 µm.
Highslide JS
Urediniospores of Physopella elephantopi on Bridelia stipularis - BRIP 58415.
Scale bar = 10 µm.