Phytotaxa ISSN 1179-3155 (print); ISSN 1179-3163 (online) | |
A rapid international journal for accelerating the publication of botanical taxonomy |
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Phytotaxa
214 (2015)
214 (1): 001–084 (19 June 2015) Monograph
Abstract Smallanthus (Asteraceae, Millerieae), the "yacón" genus, comprises 23 species ranging from southeastern United States to central Argentina, with the greatest diversity in Peru and Mexico. Species of Smallanthus are herbs, shrubs or small trees with tuberous roots, opposite, trinerved or triplinerved leaves, paleate receptacle, ray corollas externally hairy at the base, pappus lacking, and marginal cypselae partially embraced by the inner phyllaries of the involucre. As a result of this revision: Smallanthus araucariophilus and S. riograndesis are considered synonyms of S. macroscyphus; lectotypes are designated for nine names; and the geographical distribution of S. latisquamus, S. lundelli, S. riparius, and S. siegesbeckia is extended. A comprehensive key to the species and detailed descriptions, geographical distribution, phenology, illustrations and distribution maps are provided for all taxa. |
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Copyright © 2015 Magnolia Press | Published: 19 Jun. 2015 |