Entyloma arctotis Vánky

Description

Sori on the adaxial surface of leaves, visible as circular brown slightly swollen spots, 1–3 (–4) mm diam. (abaxial surface densely covered with white hairs).

Spores globose, ellipsoidal to subpolyhedrally irregular with flattened contact sides, 10–16 × 9–13 µm, pale yellowish brown; wall 2-layered, slightly uneven, thickest at the angles, 1.5–3.0 (–3.5) µm thick, smooth.

Hosts
   
Host family: Asteraceae
   
Host species: Cymbonotus lawsonianus Gaudich.
Cymbonotus sp. aff. preissianus Steetz

Distribution

States & Territories: ACT, NSW

Comments

The topotype material has an associated Cercospora-like fungus that may represent the anamorphic stage of this smut.