Ruellia L.
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Floras and Monographs
Ruellia: [Book] Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Ruellia: [Article] Acevedo-Rodríguez, Pedro & collaborators. 1996. Flora of St. John, U.S. Virgin Islands. Mem. New York Bot. Gard. 78: 1-581.
Ruellia: [Article] Leonard, Emery C. 1951. The Acanthaceae of Colombia, I. Contr. U. S. Natl. Herb. 31: 1-117.
Ruellia L.: [Article] Wasshausen, Dieter C. & Wood, John R. I. 2004. Acanthaceae of Bolivia. Contr. U. S. Natl. Herb. 49: 1-152.
Ruellia L.: [Book] Britton, Nathaniel L. & Millspaugh, Charles F. 1920. The Bahama Flora.