The genus habenaria in western North America - Correll, Donovan Stewart 1908-1983 (San Francisco, California : Alice Eastwood and John Thomas Howell, 1943)
Separata de: Leaflets of Western Botany, Vol. III, no. 11 (1943)
Keywords: HABENARIA -- AMÉRICA DEL NORTE; ORQUIDEAS -- AMERICA DEL NORTE