Title: The Relationship and Origin of Tsuga heterophylla and Tsuga mertensiana Based on Phytochemical and Morphological Interpretations
Abstract: American Journal of BotanyVolume 59, Issue 2 p. 149-157 Article THE RELATIONSHIP AND ORIGIN OF TSUGA HETEROPHYLLA AND TSUGA MERTENSIANA BASED ON PHYTOCHEMICAL AND MORPHOLOGICAL INTERPRETATIONS Ronald J. Taylor, Ronald J. Taylor Department of Biology, Western Washington State College, Bellingham, Washington, 98225Search for more papers by this author Ronald J. Taylor, Ronald J. Taylor Department of Biology, Western Washington State College, Bellingham, Washington, 98225Search for more papers by this author First published: 01 February 1972 https://doi.org/10.1002/j.1537-2197.1972.tb10074.xCitations: 7 The author would like to acknowledge the assistance of Dr. Richard T. Haard, Western Washington State College, in pollen sampling. Travel funds and student assistance were provided in part by the Bureau for Faculty Research, Western Washington State College. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract Morphological intermediacy between Tsuga heterophylla and Tsuga mertensiana has stimulated controversy concerning the relationship between these two hemlock species and has led to wide acceptance of hybridization as a causative factor of intermediate forms in areas of distributional overlap. In this study, comparative' chemical analyses were used to test the theory of hybrid derivation of intermediates. Chromatographic analyses were further applied to the phylogenetic ranking of several North American and Asian species of Tsuga and to the examination of the hypothesis that Tsuga mertensiana is a derivative of intergeneric hybridization involving Tsuga heterophylla and Picea sitchensis. Chromatographic data derived from extensive sampling in the western Cascades of Washington led me to conclude that hybridization of Tsuga heterophylla and T. mertensiana is a possible but rare phenomenon and is not necessarily indicated by morphological intermediacy. Phylogenetically both of these species are typical representatives of Tsuga and are distinct from species of Picea. There is, however, some support for the derivation of Tsuga mertensiana by intergeneric hybridization. Citing Literature Volume59, Issue2February 1972Pages 149-157 RelatedInformation
Publication Year: 1972
Publication Date: 1972-02-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 3
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