C. J. Humphries

Biodiversity databases

2019

Cladistic biogeography

1999

Wild flowers

2006

Spotter's guide to wild flowers

1978

Ontogeny and systematics

1988

Usborne spotter's guide to nature

2012

Understanding Materials

2002

Systematics

1999

Systematics and conservation evaluation

1994

Guide to trees of Britain and Europe

2000

Grasses, sedges, and rushes in colour

1979

Gorse

1999

Flores Silvestres

1998

Biodiversity Databases

2010