Botany : an introduction to plant science / Wilfred W. Robbins, T. Elliot Weier. Robbins, Wilfred William, 1884-1952. Weier, T. Elliot, joint author Botany. QK47 .R542 1957 580 ROB Includes index. Glossary: p. 481-498. New York : Wiley, c1950. c1950. 1957 Text viii, 498 p. : eng