Entyloma australe Speg.

Synonyms

Entyloma besseyi Farlow
Entyloma physalidis (Kalchbr. & Cooke) G. Winter
Entylomella australe Cif.
Protomyces physalidis Kalchbr. & Cooke

Description

Sori in leaves, visible as circular to angular spots, at first light yellow, later brown, 1–5 mm diam., larger when confluent.

Spores globose, subglobose to somewhat polyhedral or irregular, 7–16 µm diam., hyaline, pale yellow to yellowish brown; wall 1–3 µm thick, smooth.

Anamorph in whitish tufts over the spots, conidia linear, often curved, 24-50 x 1.5-2.5 µm.

Hosts
   
Host family: Solanaceae
   
Host species: Physalis angulata L.
Physalis ixocarpa Brot. ex Hornem.
Physalis minima L.
Physalis peruviana L.
Physalis virginiana Miller
Physalis viscosa L.

Distribution

States & Territories: NSW, QLD, VIC

Comments

The conidia of the anamorph are usually produced in abundance on fascicles that emerge through stomata on the lower surface of the leaf spots. The appearance of these spots has led to the common name “white smut” to describe the disease on Physalis. Entyloma australe has not yet been reported in Australia on Lycopersicon and Solanum spp., although it occurs on these hosts elsewhere.