Three species and two varieties are described as new, viz P. marduguru sp. nov., P. aphyllus sp. nov., P. stipitatus sp. nov., P. divaricatus var. rubescens var. nov., P. drummondii var. elongatus var. nov. Their relationships are discussed. The new species are illustrated by analytical drawings of the flowers; photos of all type specimens are provided. In addition a key to the P. drummondii complex is given.