The Iris family

Systematics and biology of Lapeirousia, Codonorhiza, Psilosiphon and Schizorhiza in southern Africa

Crocosmia and Chasmanthe

Gladiolus in tropical Africa

The Woody Iridaceae: Nivenia, Klattia & Witsenia

The genus Watsonia

Systematics and biology of the Cape genus Sparaxis (Iridaceae)

A revision of the southern African genus Babiana, Iridaceae: Crocoideae

Cape plants

Index to Plant Chromosome Numbers 1986-1987/Msb-30

Index to Plant Chromosome Numbers 1984-1985 (Monographs in Systematic Botany from the Missouri Botanical Garden, 0161-1542; Vol. 23)