The flora of Canada - pt. 1: General survey.- pt. 2: Pteridophyta, Gymnospermae, Monocotyledoneae.- pt. 3: Dicotyledoneae (Saururaceae to Violaceae).- pt. 4: Dicotyledoneae (Loasaceae to Compositae)

angiospermas angiosperme angiosperms biogeografia biogeographie biogeography bosques environment environnement flora flore forest land forests geographical distribution gimnospermas grasslands gymnosperme gymnosperms herbage identification medio ambiente praderas pteridophyta spermatophyta terrain forestier tierras forestales toundra tundra