. EXPLANATION CD California Microphyll Desert. Great Basin Microphyll Desert. ! I Texas Semi-Desert. Arizona Succulent Desert. Texas Succulent Desert. Pacific Semi-Desert. CD Desert-Grassland Transition. Grassland—Deciduous-Forest. Transition. Deciduous Forest. Southeastern Evergreen- Deciduous Transition Forest. Southeastern Mesophytic Evergreen Forest. EZ3 Northeastern Evergreen Deciduous Transition Forest. C3 Northern Mesophytic Evergreen Forest. Western Xerophytic Evergreen Forest. Northwestern Hygrophytic Evergreen Forest. B^SE FROM U S GEOLOGICAL SURVEY VEGETATION AREAS OF THE UNITED STA

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. EXPLANATION CD California Microphyll Desert. Great Basin Microphyll Desert. ! I Texas Semi-Desert. Arizona Succulent Desert. Texas Succulent Desert. Pacific Semi-Desert. CD Desert-Grassland Transition. Grassland—Deciduous-Forest. Transition. Deciduous Forest. Southeastern Evergreen- Deciduous Transition Forest. Southeastern Mesophytic Evergreen Forest. EZ3 Northeastern Evergreen Deciduous Transition Forest. C3 Northern Mesophytic Evergreen Forest. Western Xerophytic Evergreen Forest. Northwestern Hygrophytic Evergreen Forest. B^SE FROM U S GEOLOGICAL SURVEY VEGETATION AREAS OF THE UNITED STATES Compiled by Forrest Shreve. Scale 1: 9,600,000. Alpine Summits. Swamps and Marshes.

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Keywords: ., bookcentury1900, bookdecade1920, booksubjectphytoge, bookyear1921