 Hooker in an article by Auguste Le Jolis in the "Revue Horticole" of 1 January 1848.Another specimen, believed to be identical to a plant found by Ronald Gunn at the Whanganui River in 1864, was described from a plant growing in a garden in Torquay, England in 1888 and given the name "P. hookeri" (later reduced to a subspecies under the name "P. cookianum" subsp.