Buckinghamia

Buckinghamia is a genus of only two known species of trees, belonging to the plant family Proteaceae. They are endemic to the rainforests of the wet tropics region of north eastern Queensland, Australia. The ivory curl flower, B. celsissima, is the well known, popular and widely cultivated species in gardens and parks, in eastern and southern mainland Australia, and additionally as street trees north from about Brisbane. The second species, B. ferruginiflora, was only recently described in 1988.

== History, classification and evolution == The genus was named in 1868 by Ferdinand von Mueller in honour of Richard Grenville, the Duke of Buckingham, who was Secretary of State for the Colonies from 1866 to 1868. It was initially placed in a tribe Grevilleae, but the feature of having four ovules per carpel led Chellapilla Venkata Rao to classify it in the tribe Telopeae, and within this a new subtribe Hollandaeae based on the antero-posterior orientation of the perianth, with the genera Hollandaea, Cardwellia, Knightia, Opisthiolepis and Stenocarpus.