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Achenia acute alternate anthers apex arrangement axillary base beneath berry bracts branching called calyx Capsule carpels cells characters charts clusters colored common compound consisting cordate corolla cultivated dense described distinct entire equal erect Examine EXERCISE Family feet high fertile flat flowers fruit Glumes green grounds grow hairy heads Herbs inserted involucre kind lanceolate leaf leaflets leaves less limb linear lobes Look margin minute nearly numerous oblong Observe obtuse opening opposite Order oval ovary ovate ovules panicle peduncles perfect Perianth persistent Petals petioles pistil plants pubescent purple racemes rarely receptacle regular represents roots rough scales schedule seeds seen segments sepals separate serrate sessile short shown shrubs side simple single slender smooth solitary sometimes species specimens spikes spreading Stamens stem Stigma stipules Style teeth terminal Trees tube umbels upper usually woods yellow
Page ix - ... the study of the principles of a natural arrangement, not only in the abstract, but in their actual application to the class of phenomena for which they were first elaborated, and which are still the best school for learning their use.
Page 348 - Geology," etc. 12mo, 399 pages. APPLIED GEOLOGY. A Treatise on the Industrial Relations of Geological Structure. By SAMUEL G. WILLIAMS, Professor of General and Economic Geology in Cornell University. 12mo, 386 pages. DESCRIPTIVE BOTANY. A Practical Guide to the Classification of Plants, with a Popular Flora. By ELIZA A. YOUMANS. 12mo, 336 pages. PHYSIOLOGICAL BOTANY. By ROBERT BENTLEY, FLS, Professor of Botany in King's College, London. Adapted to American Schools and prepared as a Sequel to " Descriptive...
Page 347 - Sciences, and a demand for improved text-books representing the more accurate phases of scientific knowledge, and the present active and widening field of investigation, arrangements have been made for the publication of a series of text-books to cover the whole field of sciencestudy in High Schools, Academies, and all schools of similar grade.
Page viii - Although the scientific arrangements of organic nature afford as yet the only complete example of the true principles of rational classification, whether as to the formation of groups or of series, those principles are applicable to all cases in which mankind are called upon to bring the various parts of any extensive subject into mental coordination. They are as much to the point when objects are to be classed for purposes of art or business, as for those of science. The proper arrangement...