Richardia tricocca subsp. tetracocca (M.Martens & Galeotti) W.H.Lewis & R.L.Oliv., 1974 4% complete

No common name

Lewis WH, Oliver RL (1974) Revision of Richardia (Rubiaceae). Brittonia 26(3): 271-301. doi: 10.2307/2805730.