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

Puccinia aucta Dietel.

Description
Telia on lower leaf surface, subepidermal, dome-shaped, up to 0.5 mm, confluent, yellowish brown.

Teliospores fusiform or clavate, apex acuminate, 2 celled, yellowish brown, 55‒70 × 13‒20 µm; wall 1.5‒3 µm thick at sides, 5‒10 µm thick at apex, smooth, with single persistent pedicel.

Hosts
Host family: Campanulaceae
Host species: Lobelia alata
Lobelia anceps
Lobelia purpurascens

Distribution
NSW, QLD

Comments
Puccinia aucta was originally described on Lobelia spp. (Campanulaceae) from Victoria, Australia (Berkley, 1873). Preliminary molecular phylogenetic analyses show that P. aucta is not related to the rusts on Goodeniaceae, a family closely related to the Campanulaceae (unpublished).

Highslide JS
Puccinia aucta on Lobelia anceps - BRIP 60028.
Highslide JS
Telia of Puccinia aucta on Lobelia anceps - BRIP 60028.
Scale bar = 1 cm.
Highslide JS
Teliospores of Puccinia aucta on Lobelia anceps - BRIP 60028.
Scale bar = 10 µm.