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A Revision of the Tribal and Subtribal Limits of the Heliantheae (Asteraceae)
Harold Ernest Robinson
出版Smithsonian Institution Press, 1981
主題Science / Life Sciences / Botany
ISBN05981704139780598170415
URLhttp://books.google.com.hk/books?id=pqBOyZiAjF8C&hl=&source=gbs_api
註釋The tribe Heliantheae is expanded to include the genera previously placed in the tribe Helenieae and many genera from the Senecioneae. Thirty-five subtribes are recognized and described, and the more than 265 genera are listed with known, validly described synonyms. A theoretical key to subtribes is provided. Various structural and chemical characteristics are reviewed, and emphasis is given to resin duct patterns, presence of fiber-sheaths in disk corollas, and patterns of striations in achenes. The Heliantheae is considered a member of the subfamily Asteroideae in a position parallel to and more advanced than the Eupatorieae.