Aquatic Plant Book. 1990. 408 figs. (line-dra- wings). 228 p. Lex8vo. Paper bd.

The book is a comprehensive guide to the aquatic plants of the world.It describes and illustrates 407 genera including all ferns andflowering plants that are likely to be found in or floating onpermanent or semi-permanent, fresh or salt water anywhere in the world.Care has been taken to describe juvenile and vegetative features whichare often ignored in floristic literature but are so important for theidentification of aquatics particularly as many species have shortlivedor insignificant flowers that are easily overlooked or some speciesrarely develop flowers at all. The identification keys are based, whenpossible, on easily seen vegetative features. This book is also areference work: for each genus information on distribution (native andintroduced ranges), like forms, ecology, pollination mechanisms,disseminules and their dispersal mechanisms, uses, economic importance,and references to the literature is given.