@article{1363979,
      recid = {1363979},
      author = {Tryon, Alice F., and Lugardon, Bernard,},
      title = {Spores of the Pteridophyta : surface, wall structure, and  diversity based on electron microscope studies /},
      pages = {1 online resource (648 pages) :},
      note = {"With 2797 Figures."},
      url = {http://library.usi.edu/record/1363979},
}