A family of three genera and about 36 species in SW Pacific, Philippines to Australia and New Caledonia; two genera occur naturally in Australia.

Quintinia - A genus of about 25 species occurring from the Philippines to New Zealand; four species occur naturally in Australia. Mueller (1891); White & Francis (1926).

Sphenostemon - A genus of 10 species in Malesia, Australia and New Caledonia; one species occurs naturally in Australia. Pedley (1984); Smith (1957).

Mueller, F. (1891). Descriptions of new Australian plants with occasional other annotations. The Victorian Naturalist 7:180-183.

Pedley, L. in George, A.S. (Ed) (1984), Flora of Australia 22: 204.

Smith, L.S. (1957) Proceedings of the Royal Society of Queensland 68: 43

White, C.T. & Francis, W.D. (1926). Contributions to the Queensland Flora, No. 3. Proceedings of the Royal Society of Queensland 37:152-167.