Unknown rank Hoodia pilifera subsp. pillansii

Named after Capetonian botanist Neville Stuart Pillans (1884-1964). He joined the staff at Bolus herbarium in 1918 and worked there till his retirement. He had a penchance for succulents and did Monographs of the Restionaceae, Bruniaceae, Phylica, Agathosma and Metalasia. He also did some work on the genus Hermannia, but gave up two years before his death.