Rubiaceae Juss.
Coprosminae Fosberg , legitimate, scientific
Fosberg, F.R. (20 April 1982), A preliminary conspectus of the genus Leptostigma (Rubiaceae). Acta Phytotaxonomica et Geobotanica 33: 75 [tax. nov.]
Thompson, I.R. (4 January 2010), A new species of Leptostigma (Rubiaceae: Coprosminae) and notes on the Coprosminae in Australia. Muelleria 28(1): 30 BHL [secondary reference]