A Textbook of Botany for Colleges and Universities: Ecology |
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absorption abundant accumulation advantage aerial stems air spaces algae alpine appear autophytes bark bast branches buds bundle carbohydrate cell sap chlorenchyma chlorophyll chloroplasts color commonly conductive conifers cork cross section cutin desiccation dicotyls elongation epidermis epiphytes erect evergreen exposed external factors facilitate favorable ferns flowers foliage leaves fungi germination grow growth guard cells habitats hadrome highly magnified horizontal hydrophytes increased insects known lateral latex layer leaf lenticels leptome lianas lichens light liverworts mechanical tissue mesophytic moist monocotyls mosses occur orchids organs palisade cells parasites petiole phloem plastids pollen portion probably protective regions relatively reproduction rhizoids rhizomes rôle root hairs rosette salts saprophytic scale leaves seed plants shoots showing shrubs soil species spores starch stomata structures submersed succulent surface synthesis temperature tendril theory tion tracheids transpiration trees tropical tubers upper usually variation various vascular vegetative vegetative reproduction walls xerophytic xylem
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Page 9 - ... entailed years of work by skilled specialists.. No effort or expense has been spared to attain the highest degree of clearness, terseness, and accuracy. The plant families have been rearranged in a manner to show the latest view of their affinities, and hundreds of species have been added to the flora. The nomenclature has been brought into thorough accord with the important international rules recently established — a feature of great significance. Indeed, the Manual is the only work of its...
Page 477 - ... an attitude of mind that will enable him to grapple with any botanical situation, whether it be teaching or investigation.
Page 9 - ... GALLOWAY KELLER, Ph. D., Assistant Professor of the Science of Society, Yale University EDWARD JAMES PAYNE, MA, Fellow of University College, Oxford PHILIP PATTERSON WELLS, Ph. D., Lecturer in History and Librarian of the Law School, Yale University FREDERICK ALBION OBER, Historian, Author and Traveler JAMES WILFORD GARNER, Ph. D., Professor of Political Science, University of Illinois JOHN BACH McMASTER, LItt.