P. D. Sell

Critical supplement to the Atl

Critical supplement to the Atlas of the British flora

1978

Nebenwirkungen einiger Pestizi

Nebenwirkungen einiger Pestizide auf Aphidoletes Aphidimyza (rond.) (Diptera : Cecidomyiidae) unter besonderer Berucksichtigung von Frassleistung und Fruchtbarkeit

1975

Notes on the European species

Notes on the European species of Scleranthus

1963

Taxonomic and nomenclatural no

Taxonomic and nomenclatural notes on European Fumaria species

1963

Some North American Eyebrights

Some North American Eyebrights (Euphrasia)

1962

Flora of Great Britain, Ireland, Isle of Man, and the Channel Islands

1900