Abstract
Revision of the genus Passerina L. indicated a new delimitation of taxonomic entities within the Passerina filiformis L. complex. Evidence from leaf anatomy greatly assisted in the recognition of taxa. P. filiformis is here divided into two subspecies. namely P. filiformis subsp. filiformis and P. filiformis subsp. glutinosa (Thoday) Bredenkamp A.E.van Wyk. and a new species. P. montivagus Bredenkamp A.E.van Wyk, which is also described. The new taxa are geographically separated: subsp. filiformis ranges from Piquetberg in the north through the Cape Peninsula in the south, where it is quite common. to Attaquaskloof in the southwestern Cape: subsp. glutinosa occurs along the coast between Vredendal and St Helena Bay; and P. montivagus has a wide distribution from Mossel Bay and Oudtshoom in the south through Eastern Cape and along the Great Escarpment northwards to Zimbabwe, with outliers in Tanzania.
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