dcsimg
Please read BHL's Acknowledgment of Harmful Content
Sort By:
  1. By: Nielsen, Etlar L
    Type: Article
    In: Rhodora
    Volume: 43
    Date: 1941
    Page Range: 219--220
    Publication Info: [Cambridge, Mass., etc.], New England Botanical Club [etc.],
  2. By: Nielsen, Etlar L
    Type: Article
    In: Madroño; a West American journal of botany
    Volume: 4
    Date: 1937
    Page Range: 17--21
    Publication Info: Berkeley, California Botanical Society,
  3. By: Nielsen, Etlar L
    Type: Article
    In: Torreya
    Volume: 35
    Issue: 3
    Date: 1935
    Page Range: 53--56
    Publication Info: Burlington, Vt, Torrey Botanical Club, 1901-1945