Tilletia laevis J.G. Kühn

Synonyms

Erysibe foetida Wallr.
Tilletia foetens (Berk. & M.A. Curtis) J. Schröt.
Tilletia foetida (Wallr.) Liro
Ustilago foetens Berk. & M.A. Curtis (as "faetens")

Description

Sori in ovaries, containing the powdery olivaceous brown foetid spore mass.

Spores globose, ovoid to irregular, 16–24 × 14–17 µm, light yellowish to olivaceous brown, with granular or guttulate contents; wall smooth, 1.0–1.5 µm thick, often with a short papilla or mycelial fragment.

Sterile cells sparse to abundant, globose to irregular, 11–18 µm diam., hyaline; wall thin, smooth, 0.5–1.2 µm thick.

Hosts
   
Host family: Poaceae
   
Host species: Triticum aestivum L.

Distribution

States & Territories: NSW, QLD, TAS, VIC

Comments

Spores attach to the grains at harvest and then germinate in moist soil. Compatible basidiospores fuse, and the resulting dikaryotic hyphae infect seedling coleoptiles.

Tilletia laevis has been discussed under T. caries (q.v.).