C. Anderson, “HIRAEA CUNEATA, H. MACROPHYLLA, AND FOUR NEW SPECIES CONFUSED WITH THEM: H. HATSCHBACHII, H. OCCHIONII, H. REITZII, AND H. RESTINGAE (MALPIGHIACEAE)”, Edinburgh J. Bot., vol. 71, no. 3, pp. 361–378, Nov. 2014, doi: 10.1017/S0960428614000183.