Abstract
Issues of the nomenclature and typification of four species of Geraniaceae described by Turczaninow from Australia and New Zealand are discussed. It is emphasized that holotypes or syntypes of all taxa described by Turczaninow in his Animadversiones series of articles are deposited in the Turczaninow historical herbarium at KW, unless noted otherwise in the protologue. Lectotypes are designated here for the names Geranium homeanum Turcz. (KW, second-step lectotypification), Erodium peristeroides Turcz. (KW), Pelargonium stenanthum Turcz. (K, to replace the lost holotype formerly held in KW), and P. inodorum Willd. (B, second-step lectotypification). Taxonomic identities of some names are discussed: Geranium homeanum and Pelargonium drummondii Turcz. (holotype in KW) are currently accepted species, Erodium peristeroides is considered a synonym of Pelargonium inodorum, and P. stenanthum is a synonym of P. littorale Huegel.