Robinson, B.L., Greenman, J.M. (1894). Further new and imperfectly known plants collected in Mexico by C. G. Pringle in the summer of 1893. Proc. Amer. Acad. Arts. 29: 382-394.
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Robinson, B.L., Greenman, J.M.
1894
Further new and imperfectly known plants collected in Mexico by C. G. Pringle in the summer of 1893.