Try AccessScience for additional online reference materials or look for one of the books below.
Paper copies of several periodicals for botanists (American Fern Journal, The American Naturalist, Journal of the Torrey Botanical Society) are available for browsing in Campbell Library's 2nd floor Current Periodicals Room.
Here are some key botany journals to get you started.
Plant science books are available on the 4th floor of Campbell Library. Books on botany are in QK and books on cultivated plants and agriculture are in SB.
To search for plant science books in the Library Catalog, use one of these Library of Congress Subject Headings in the Subject search: Algology, Botany, Fertilization of plants, Mycology, Paleobotany, Plant anatomy, Plant ecology, Plant embryology, Plant morphology, or Trees.