Note 431 — ZWEITER TEIL Spezielle Botanik. (continued 3)
Reading edition
JEFFREY, Univers. of Toronto, biol. series Nr. 1 1898 (Botrychium). BURLINGHAM, Bot. Gaz., 44. Bd. 1907, S. 34 (Ophiogl.). CHRYSLER, Annals of bot., 24. Bd. 1910, S. 1. LYON, Bot. Gaz., 40. Bd. 1905, S. 455 (Botrychium). BRUCHMANN, Flora, 96. Bd. 1906, S. 203 (Botrychium).