Three new species of Calandrinia (Portulacaceae) from the Eremaean and South West Botanical Provinces of Western Australia
Three new species in Calandrinia Kunth. sect. Pseudodianthoideae Poelln. are described: C. hortiorum Obbens, C. umbelliformis Obbens and C. operta Obbens. The first two species are located within the Eremaean Botanical Province while the last species has a disjunct distribution in both the Eremaean and South West Botanical Provinces.