Micromyrtus uniovulum

Micromyrtus uniovulum is a species of flowering plant in the family Myrtaceae and is endemic to a small area in the south-west of Western Australia. It is a low, spreading, sometimes erect shrub with oblong leaves, and white flowers with 10 stamens.

Description
Micromyrtus uniovulum is a low, spreading, sometimes erect shrub that typically grows to a height of up to 40 cm. Its leaves are narrowly to broadly oblong, 1.5–4.5 mm long and 1–2 mm wide on a petiole 0.3–0.5 mm long usually with 5 to 8 oil glands on each side of the midvein. The flowers are arranged in racemes up to 30 upper leaf axils and are about 3 mm in diameter on a peduncle 0.5–0.7 mm long. The floral tube is 2.0–2.3 mm long with 5 ribs. The sepals are 0.3–0.4 mm long and 0.5–0.6 mm wide. The petals are white, widely spreading and egg-shaped, and there are 10 stamens. Flowering occurs from September to December and the fruit is about 1.8 mm long.

Taxonomy
Micromyrtus uniovulum was first formally described in 2002 by Barbara Lynette Rye in the journal Nuytsia from specimens collected near Bunny Road in 1999. The specific epithet (uniovulum) means "one egg" and refers to the species having only one ovule in the ovary.

Distribution and habitat
This species is found on the lateritic rises in a mall area west of Three Springs in the Avon Wheatbelt and Geraldton Sandplains bioregions of south-western Western Australia.

Conservation status
Micromyrtus uniovulum is listed as "Priority Two" meaning that it is poorly known and known from only a few locations but is not under imminent threat.