by C.R. Metcalfe and L. Chalk ; with contributions from J. Burley ... [et al.] ; pbk. -- 2nd ed. -- Clarendon Press, 1989, c1983. -- (Anatomy of the dicotyledons / by C.R. Metcalfe and L. Chalk ; with contributions from Katherine Esau ... [et al.] ; v. 2).