(Vol. 02, 1999-12) A Taxonomic Treatment of Sida Sect. Ellipticifoliae (Malvaceae)
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A taxonomic treatment of Sida L. sect. Ellipticifoliae Fryxell is presented in which eight species and two varieties are recognized. Brief descriptions, a key to species, distribution maps, illustrations, and notes on ecology, etymology, typification, and species relationships are included. Sida infiexa Fernald is reduced to synonymy under S. elliottii Torr. & A. Gray, S. rubromarginata Nash is resurrected in light of new characters, and S. elliottii var. parvifiora Chapm. is broadly redefined.