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Geographical and climatic limits of needle types of one- and two-needled pinyon pines

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Cole, Kenneth L, Fisher, Jessica, Arundel, Samantha T, Cannella, John, and Swift, Sandra, Geographical and climatic limits of needle types of one- and two-needled pinyon pines: .

Summary

Aim The geographical extent and climatic tolerances of one- and two-needled pinyon pines (Pinus subsect. Cembroides) are the focus of questions in taxonomy, palaeoclimatology and modelling of future distributions. The identification of these pines, traditionally classified by one- versus two-needled fascicles, is complicated by populations with both one- and two-needled fascicles on the same tree, and the description of two more recently described one-needled varieties: the fallax-type and californiarum-type. Because previous studies have suggested correlations between needle anatomy and climate, including anatomical plasticity reflecting annual precipitation, we approached this study at the level of the anatomy of individual pine [...]

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  • Upper Colorado River Basin

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From Source - Mendeley RIS Export <br> On - Wed Sep 19 08:08:31 MDT 2012

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Title Citation Geographical and climatic limits of needle types of one- and two-needled pinyon pines

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