Nigel P. Taylor

Cacti of Eastern Brazil

2004

Studies in the Opuntioideae (C

Studies in the Opuntioideae (Cactaceae)

2002

Genus Melocactus (Cactaceae) in Central and South America

1991

The genus Echinocereus

The genus Echinocereus

1986

Kew Mag Monograph

1985