Joseph Burtt Davy (1870-1940): Manual Flowering Plants Ferns Transvaal (1926) ; John A. Hutchinson: Families Flowering Plants (1926-34) ; James Edgar Dandy: Magnoliaceae (1926) ; Flora West Tropical Africa (1928-9) ; Hitchinson: Families Flowering Plants (1926 & 1934) ; Curtis's Botanical Magazine several plates) ; Flora of West Tropical Africa ;
British Botany Club ; Sir Fred Moore Glasnevin Botanic Gardens ; Duke of Rutland at Belvoir Castle ; Kew 1920