About Leionema bilobum (Lindl.) Paul G.Wilson
Leionema bilobum, commonly known as notched phebalium, is a shrub species in the family Rutaceae. It is endemic to south-eastern Australia. This species was first formally described by English botanist John Lindley, based on material collected during Thomas Mitchell's exploration of the Grampians. Lindley's description was published in 1838 in the work Three Expeditions into the interior of Eastern Australia, and he originally named the species Phebalium bilobum. In 2003, Paul G. Wilson transferred the species to the genus Leionema, creating the current accepted scientific name Leionema bilobum (Lindl.) Paul G.Wilson. Four subspecies were formally described in 2006: Leionema bilobum subsp. bilobum, the nominate subspecies found in the eastern Grampian Ranges, Victoria; Leionema bilobum subsp. serrulatum (F.Muell.) Duretto & K.L.Durham, a long-leaved form from Gippsland, Victoria; Leionema bilobum subsp. thackerayense Duretto & K.L.Durham, a form with smooth-edged leaves that do not have a bilobed tip, occurring in the Western Grampians Ranges (including Mount Thackeray) and the Black Range; and Leionema bilobum subsp. truncatum (Hook.f.) Duretto & K.L.Durham, found in northern and eastern Tasmania.
