Schiedeella nagelii (L.O. Williams) Garay Schiedeella nagelii (L.O. Williams) Garay in Bot. Mus. Leafl. 28(4): 357. 1982 sec. Soto-Arenas & al. 2007≡Spiranthes nagelii L.O. Williams in Bot. Mus. Leafl. 12(7): 230, t. 32. 1946 syn. sec. Soto-Arenas & al. 2007