Home › Authors › National Museum of Natural History (U.S.). Department of Botany 👤 National Museum of Natural History (U.S.). Department of Botany 2 books Books by National Museum of Natural History (U.S.). Department of Botany Monocotyledons and gymnosperms Monocotyledons and gymnosperms of Puerto Rico and the Virgin Islands 2005 Department of Botany Department of Botany 1986