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Leonard, Emery C

The Acanthaceae of Colombia . - Washington, D.C. , U.S. Government Printing office, 1951, 1953. - pts. 1,2 - (Smithsonian Institution. U.S. National Museum. Contributions form the U.S National Herbarium, vol. 31, pt . 1,2) .

LC Class. No.: Ref. Qk 495. / A1655 Leo