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Subjects: 1805-1877; 1805-1886; 1809-1884; Aster; Boott, William,; Braun, Alexander,; Carex; Compositae; Correspondence; Cyperaceae; Engelmann, George,; Environmental geology; Gramineae; Growth (Plants); Habitat; Isoetaceae; Isoetes; Letters; Maps; Potamogeton; Potamogetonaceae; Solidago; Spartina</div>
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Boott, William,</div>
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