Previous ed.: published as The Oxford book of flowerless plants. Oxford : Oxford University Press, 1966.
Bibliography: p201. _ Includes index.
The illustrated book of flowerless plants : ferns, fungi, mosses and liverworts, lichens, and seaweeds by B. E. Nicholson. ISBN 090740846X. Published by Peerage in 1979. Publication and catalogue information, links to buy online and reader comments.