Dittmer, Howard J. Phylogeny and form in the plant kingdom : with principal drawings by carolyn dalbey findley / Howard J. Dittmer. - East-West ed. - London : D. Van nostrand company, c 1968. - xiii, 642 p. : Ill. ; 23 cm. Index includes. 340 340 Subjects--Topical Terms: Plant morphology.Plants--Phylogeny. Dewey Class. No.: 581.38 / D636p