8. Pondweeds of Great Britain and Ireland

Author(s):  C.D. Preston
Illustrations: L.T. Ellis, M. Dowlen, K. Dracoulis, G. Lyall, M. Tebbs

Published: 1995
352 pages with black and white illustrations
ISBN: 9780901158246

A substantial guide to the British species of Potamogeton, Groenlandia and Ruppia, Pondweeds of Great Britain and Ireland has an introductory section covering biology and ecology followed by taxonomic keys, distribution maps, and line illustrations.