The illustrated book of flowerless plants ferns, fungi, mosses and liverworts, lichens, and seaweeds /
Nicholson, B. E.(Barbara Evelyn),1906-1978.
Brightman, Frank H.
Nicholson, B. E.(Barbara Evelyn),1906-1978.Oxford book of flowerless plants.
London Peerage
1979, c1966
Previous ed.: published as The Oxford book of flowerless plants. Oxford : Oxford University Press, 1966
Bibliography: p201. - Includes index
Cryptogams.