Rust Fungi of Southeast Asia

Puccinia thwaitesii Berk.

Description
Telia on lower leaf surface, subepidermal, erumpent, linear, usually formed in concentric circles up to 1.5 cm diameter, black, peridium and paraphyses present.

Teliospores ellipsoidal to fusiform, apex acuminate, 2 celled, reddish brown, 31-41 × 18-23 µm; wall 2-3 µm thick, slightly thickened (3-4 µm) at apex, smooth, pedicel persistent, up to 94 µm.

Specimens cited in description:
- BRIP 58354

Hosts
Host family:
- Acanthaceae

Host species:
- Justicia gendarussa

Distribution
Vietnam

Highslide JS
Puccinia thwaitesii on Justicia gendarussa - BRIP 58354.
Highslide JS
Puccinia thwaitesii on Justicia gendarussa - BRIP 58354.
Scale bar = 1 cm.
Highslide JS
Teliospores of Puccinia thwaitesii on Justicia gendarussa - BRIP 58354.
Scale bar = 10 µm.