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Keys
  • Vascular plant groups
  • Club mosses
  • Ferns
  • Vegetative key to families
  • Gymnosperms
  • Flowering plants
  • Genera
  • Families

Ophioglossum L. >

Veins of the lamina anastomosing, with or without free vein-endings in the areolae. Fertile spikes simple; the sporangia coalescing. Sterile lamina simple or irregularly forked near the apex Ophioglossum