1965 (21th ed.) viii, 1182, [1] p., over 6000 text-illustrations, oblong 8vo, cloth. Very good copy.
1935 132 p., 8 plates, paperbound. Planzenforschung Heft 18. Ex library Joséphine Th. Koster (with her signature) and Dr. W.F. Prudhomme van Reine (with his signature).
1923 (2nd ed.) vi, 186 p., num. figs & pls, publisher's cloth. First blank flyleaf missing.
1913 vi, 184 p., num. figs & pls, publisher's cloth.
1913 vi, 184 p., num. figs & pls, publisher's cloth (plastified). Ex libris.