Three new species of Corchorus L. And Grewia L. (Sparmanniaceae/Malvaceae subfamily Grewioideae) from northern Australia, an earlier name in Grewia, and recircumscription of Triumfetta kenneallyi Halford

Abstract

Corchorus drysdalensis R.L. Barrett is described as a new species from the Drysdale River National Park. Grewia pindanica R.L. Barrett is described as a new species from the Dampier Peninsula. Grewia savannicola R.L. Barrett is described as a new species; it was previously confused with the Asian G. retusifolia Kurz. Grewia guazumifolia Juss. is an earlier name for G. glabra Blume, and considered distinct from G. multiflora Juss. The circumscription of Triumfetta kenneallyi Halford is reassessed based on recent collections and a new description is presented. The five species are all illustrated.