New Combinations and Lectotypifications in Rubiaceae for the Flora of Tropical East Africa

Three new combinations at subspecific rank are provided here for taxa of conservation interest in Tropical East Africa: Bullockia setiflora (Hiern) Razafim., Lantz & B. Bremer subsp. telidosma (K. Schum.) Gereau, Vangueria schumanniana (Robyns) Lantz subsp. mucronulata (Robyns) Lantz ex Gereau ( both Rubiaceae: Vanguerieae), and Dirichletia glaucescens Hiern subsp. angustifolia (Verdc.) Gereau ( Rubiaceae: Knoxieae). Lectotypes are designated for Plectronia telidosma K. Schum. and Tapiphyllum schumannianum Robyns.