Status of Endangered and Threatened Sand Area Species of the Illinois Flora

259 Introduction 260 Origin and Distribution of Illinois Sand Deposits 260 Grand Prairie Natural Division, Kankakee Sand Area Section 262 Grand Prairie Natural Division, Green River Lowlands Section 262 Illinois River and Mississippi River Sand Areas Natural Division, Illinois River Section 262 Illinois River and Mississippi River Sand Areas Natural Division, Mississippi River Section 262 Northeastern Morainal Natural Division, Chicago Lake Plain Section .....263 Northeastern Morainal Natural Division, Lake Michigan Dunes Section .263 Methods 263 Results and Discussion 264 Fern and Fern-Allies 269 OPHIOGLOSSACEAE 269 Gymnosperms 269 CUPRESSACEAE 269 Dicots 270 ASTERACEAE 270 BRASSICACEAE 271 CACTACEAE 272 CAPPARACEAE 272 CISTACEAE 273 CONVOLVULACEAE 273 DROSERACEAE 274

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