Callitriche muelleri
Sond. Round Water-starwortTerrestrial or amphibious. Leaves c. rhombic, 2.5–7.5 mm long, 1.5–5 mm wide, often apiculate, sometimes with a single tooth on each side, 3–5-veined, petiolate; upper leaves not rosetted. Flowers usually paired, a male and female together in 1 axil; bracteoles absent; stamen 0.25–0.3 mm long, not elongating as fruit ripens, much shorter than ripe fruit; styles erect, c. 0.05 mm long, lengthening in young fruit, soon falling. Fruit obcordate, 1.1–1.2 mm long, 1.2–1.4 mm wide, subsessile; wing c. one-third the width of the mericarp, membranous, crisped, pale.
GleP, MuF, GipP, OtP, WaP, EGL, EGU, WPro, HSF, HNF, OtR, Strz, HFE, VAlp. Also ?NT, Qld, NSW. Widespread across higher-rainfall parts of Victoria where occurring mostly on damp soil or logs in places subject to inundation. Flowers Oct.-Feb. Fruits Oct.-May.
Jeanes, J.A. (1999). Callitrichaceae. In: Walsh, N.G.; Entwisle, T.J., Flora of Victoria Vol. 4, Cornaceae to Asteraceae, pp. 459–463. Inkata Press, Melbourne.
