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Author : Flora North America
Publisher : Unknown
Page : 1358 pages
File Size : 41,8 Mb
Release : 1972
Category : Botany
ISBN : CORNELL:31924001342223
Consists mainly of reprints.
Author : Anonim
Publisher : Unknown
Page : 88 pages
File Size : 52,6 Mb
Release : 1973
Category : Botany
ISBN : STANFORD:36105031579159
Author : Gray
Publisher : Unknown
Page : 0 pages
File Size : 51,8 Mb
Release : 1895
Category : Libraries--Special collections--Rare books
ISBN : OCLC:1411073151
Author : Museum of Natural History (U.S.)
Publisher : Unknown
Page : 236 pages
File Size : 50,5 Mb
Release : 1971
Category : Botany
ISBN : UOM:39015027142366
Author : Anonim
Publisher : Unknown
Page : 729 pages
File Size : 42,5 Mb
Release : 2014
Category : Bryophytes
ISBN : 9780190202750
Author : Flora of North America Editorial Committee
Publisher : Unknown
Page : 408 pages
File Size : 41,5 Mb
Release : 1993
Category : Nature
ISBN : UVA:X002427315
To be published in 14 volumes over the next 12 years, this long-awaited synoptic compendium represents the first and only comprehensive taxonomic guide to the extraordinary diversity of plant life blanketing our continent north of Mexico--including Greenland and the St. Pierre and Miquelon islands. The collaborative effort of more than 30 major U.S. and Canadian botanical institutions, it revises and synthesizes literally thousands of floristic monographs and regional floras published over the last three centuries. But more than that, it distills the original herbarium, laboratory, and field work of hundreds of contributors--all of them leading botanists and taxonomic authorities who have joined forces to develop this century's premier tool for identifying, understanding, and conserving North America's priceless floristic heritage. Concise, easy to use, and beautifully bound and illustrated, Flora of North America is an indispensable working resource for botanists, conservationists, ecologists, agronomists, foresters, range and land managers, horticulturists,--anyone with a serious interest in the distribution, habitat, morphology, and survival of the wide-ranging plant life around us. Each of its taxonomic volumes brings together the full spectrum of critical botanical data, from basic descriptions to chromosome numbers. The entries also correct erroneous information, qualify misapplied variant names, and note known hybridizations. Findings derived from recent experimental work and from numerical taxonomy are incorporated, and to assure accuracy, these data have been extensively reviewed and tested by cooperating taxonomic specialists. Volume 1 consists of a series of introductory essays by nearly two dozen noted botanical authorities. Among the topics covered are the transformation of North American plant life since the end of the Mesozoic era some 70 million years ago; the influence of geographic, climatic, and soil factors; the impact of human cultivation; great naturalists and their contributions to botany and floristics since the age of Columbus; and approaches to plant classification, with particular attention to the evolutionarily unique pteridophytes and gymnosperms that are covered in Volume 2.
Author : Flora of North America Editorial Committee
Publisher : Oxford University Press
Page : 497 pages
File Size : 54,8 Mb
Release : 1993
Category : Science
ISBN : 9780195082425
This second volume of the magnificent compendium exhaustively describes and classifys the ferns, fern allies, and gymnosperms of North America. Covering over two dozen fern and half a dozen gymnosperm families, they survey fern species of both ecological and horticultural importance and review such gymnosperm taxa as the conifers (the dominant trees in many forests as well as important timber plants) and cycads, which display significant evolutionary features. In all, the volume assembles 509 species of ferns and fern allies and infraspecific taxa in 70 genera.
Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 53,9 Mb
Release : 19??
Category : Botany
ISBN : OCLC:1015250365
Author : Anonim
Publisher : Unknown
Page : 170 pages
File Size : 53,8 Mb
Release : 1973
Category : Botany
ISBN : PSU:000005062256
Author : Flora North America
Publisher : Unknown
Page : 236 pages
File Size : 44,9 Mb
Release : 1966
Category : Botany
ISBN : CORNELL:31924001809783
Consists mainly of reprints.
Author : Frederick Pursh
Publisher : Legare Street Press
Page : 0 pages
File Size : 52,8 Mb
Release : 2022-10-27
Category : Electronic
ISBN : 1018643818
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author : Asa Gray
Publisher : Unknown
Page : 226 pages
File Size : 44,9 Mb
Release : 1838
Category : Electronic
ISBN : 1404729410
Author : Anonim
Publisher : Unknown
Page : 20 pages
File Size : 40,5 Mb
Release : 1977
Category : Botany
ISBN : CORNELL:31924001418353
Author : Per Axel Rydberg
Publisher : Unknown
Page : 128 pages
File Size : 50,8 Mb
Release : 2024-07-03
Category : Electronic
ISBN : OCLC:875522948
Author : Anonim
Publisher : Unknown
Page : 92 pages
File Size : 42,5 Mb
Release : 1997
Category : Biogeography
ISBN : UTEXAS:059173015250538
This volume represents a first attempt at holistically classifying and mapping ecological regions across all three countries of the North American continent. A common analytical methodology is used to examine North American ecology at multiple scales, from large continental ecosystems to subdivisions of these that correlate more detailed physical and biological settings with human activities on two levels of successively smaller units. The volume begins with an overview of North America from an ecological perspective, concepts of ecological regionalization. This is followed by descriptions of the 15 broad ecological regions, including information on physical and biological setting and human activities. The final section presents case studies in applications of the ecological characterization methodology to environmental issues. The appendix includes a list of common and scientific names of selected species characteristic of the ecological regions.