The Vascular System of the Inflorescence Axis of Andropogon ... - JSTOR

cause if monocotyledon and dicotyledon vascular systems are truly different, then the modern views (Cronquist, 1968; Soo, 1975; Takhtajan; 1969) that monocotyledons are derived from (= closely related to) putatively primitive dicotyledons are open to serious question. As a test of Zimmerman and Tomlinson's (1972) hypothesis, the develop- ................
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