Paleobotany and the evolution of plants / Wilson N. Stewart. Stewart, Wilson N. (Wilson Nichols), 1917- Paleobotany. Plants Evolution. QE905 .S73 1983 561 19 STP Includes bibliographies and index. Cambridge [Cambridgeshire] ; New York : Cambridge University Press, 1983. 1983. 1983 Text x, 405 p. : eng