A TAXONOMIC RE-EVALUATION OF THE GENERA AMPHIACHYRIS, AMPHIPAPPUS, GREENELLA, GUTIERREZIA, GYMNOSPERMA, THUROVIA, AND XANTHOCEPHALUM (COMPOSITAE)

John Ruffin

Published in Sida, Contributions To Botany, in 1974, in volume 5, issue 5, pages 301-333

Date published:1974

BHL: 10008865
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