Download ebook Plant Indicators Volume 290; The Relation of Plant Communities to Process and Practice

Plant Indicators Volume 290; The Relation of Plant Communities to Process and Practice by Frederic Edward Clements

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Author: Frederic Edward Clements
Number of Pages: 232 pages
Published Date: 01 May 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781231076743
File size: 13 Mb
Download Link: Plant Indicators Volume 290; The Relation of Plant Communities to Process and Practice
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 Excerpt: ...Rocky Mountains, where the other four dominants are so typical, and its correspondingly greater abundance on the western slope. It is significant that the four most important dominants are the same for the first two areas. Prunus demissa loses its rank in the Southwest, but regains A. Quercus-Cercocarpvs-Fallugia chaparral, Milford, Utah. B. Same showing contact with sagebrush, Circocarpus Icdifolius in foreground, Milford, Utah. it in the Northwest. In the latter the absence of Quercus and Cercocarpus and the importance of Purshia suggests a greater differentiation from the central chaparral mass. However, this seems readily explained by the remoteness from the latter and by a less favorable northern climate, which find expression in the fragmentary character and the subclimax tendency of the northwestern chaparral (plate 42). DOMINANTS. Central Rocky Mountains (206 localities): Quercus undulata 126 Cercocarpus parvifolius 107 Amelanchier alnifolia 74 Rhus trilobata 58 Primus d 111 i--, i 58 Symphoricarpus albus 23 Peraphyllum ramosissimum 24 Fendlera rupicola 18 Holodiscus discolor 15 Purshia tridentata 14 Ribes cereum 11 Rosa acicularis 10 Philadelphus gordonianus 6 Opulnster opulifolius 5 Robinia neomexicana 3 Southern Area (38 localities): Quercus undulata 26 Cercocarpus parvifolius 16 Rhus trilobata 13 Amelanchier alnifolia 10 Fallugia paradoxa 10 Cercocarpus ledifolius 7 Cowania mexicana 7 Arctostaphylus pungens 6 Prunus demissa 4 Symphoricarpus albus 3 Coleogyne ramosissima 3 Ceanothus cuneatus 3 Northwestern Area (39 localities): Purshia tridentata 17 Prunus demissa 15 Amelanchier alnifolia 15 Rosa acicularis 13 Opulaster opulifolius 11 Symphoricarpus albus 11 Philadelphus gordonianus 8 Holodiscus discolor 5 Rhus trilobata 5 Ribes cereum 5 Peraphyl...

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