TAXONOMY AND TYPIFICATION OF NEW-ZEALAND GEUM (ROSACEAE)

Five indigenous and two naturalised species of Geum are accepted for t he New Zealand flora. The new combination G. cockaynei is made, and G. parviflorum, G. divergens, G. leiospermum, G. pusillum, and G. uniflo rum are lectotypified. G. alpinum Buchanan nom. illeg. is shown to be based on a mixed collection of G. leiospermum and G. uniflorum. Southe rn solitary-flowered plants with short-beaked achenes are excluded fro m G. uniflorum; they form part of the New Zealand G. cockaynei complex . G. parviflorum s. str. is probably confined to South America; within New Zealand, plants previously known under that name comprise G. cock aynei and three other entities that require further taxonomic assessme nt.