Citation: Pjh. Hurter et Hf. Glen, ENCEPHALARTOS HIRSUTUS (ZAMIACEAE) - A NEWLY DESCRIBED SPECIES FROM SOUTH-AFRICA, South African journal of botany, 62(1), 1996, pp. 46-48
Citation: Pjh. Hurter et Hf. Glen, ENCEPHALARTOS EQUATORIALIS (ZAMIACEAE) - A NEWLY DESCRIBED SPECIES FROM TROPICAL AFRICA, South African journal of botany, 61(4), 1995, pp. 226-229