dcsimg
Please read BHL's Acknowledgment of Harmful Content
Sort By:
  1. By: Walker, Ernest
    Type: Article
    In: Proceedings of the Academy of Natural Sciences of Philadelphia
    Volume: 44
    Date: 1892
    Page Range: 288--288
    Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,
  2. By: Walker, Ernest
    Type: Article
    In: Botanical gazette
    Volume: 19
    Issue: 6
    Date: 1894
    Page Range: 241--243
    Publication Info: Hanover, Ind, [publisher not identified], 1876-1991