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The Genus Pinus

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Pages: 181

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About this book

In this study, No. 5 in the Arnold Arboretum's publications, George Russell Shaw examines the characters of the pine genus and uses them to sort its species. Part 1 covers seedlings, leaves, flowers, cones, seeds, wood and bark. Part 2 classifies the species into sections and groups, with plates, running from Pinus cembra, with the most primitive cones, to Pinus radiata and its associates, with the most specialized. Shaw argues that differences in leaf or cone size can reflect a tree adapting to its climate, so they do not always mark a separate species. Cambridge, 1914.

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George Russell Shaw Open the author page

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Book facts

Author: George Russell Shaw
Reading time: About 2 hours
Pages: 181
Language: English
Genre: Biology
Formats: PDF, EPUB, Read online