Three new species, a new name and notes on Australian Polycarpaea (Caryophyllaceae)

Polycarpaea incana, P. microceps and P. tenax are described and illustrated and a new name, P. multicaulis, is chosen for the later homonym P. microphylla Pedley. Variation in these taxa, as well as P. breviflora, P. corymbosa, P. involucrata, P. spirostylis and P. violacea is discussed. A key to Australian species is included.