Burbill Two Notes on Dioscoreas in the Congo: (1) The Acarodromatis of D. minutiflora Engl. and D. similacifolia De Wild'y and (2) Twining in both directions in D. Baya De Wild. Proc. Linn Soc. Sess 151 1938-39 pt 2, 5 Apr, 1939 pp 57-61 Paint Burbill * "Dioscorea sativa" New Bull 1919 pp. 341-375- incl notes on other Linnean spp. P.+B. Dioscorearum novarum Descriptions quaedam auctoribus Journ & Proc. As. Soc. Bengal (NS) IV, ng 9 pp 447-457 (1908) P+B. On Diosc. deltoides Hall, Droce, Quinqueloba Thunb., + their allies Journ As Soc Beng Vol LXXIII pt II Suppl 1904 pp 1-11