EditorialCommon rat tongue and common moon rue, A: Ophioglossum vulgatum L. - Common Natter Tongue, B: Botrychium Lunaria Swartz - Common Moonroot, Family: 4. Ophioglossaceae - Natter Tongue Family, Plate 15, after p. 42 (Vol. 1), 1886, Otto Wilhelm Thom?: Prof...