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Subjects: (Christopher Charles),; 1805-1877; 1805-1880; 1809-1884; 1844-1868; Braun, Alexander,; Collectors and collecting; Correspondence; Ecology; Engelmann, George,; Frost, C. C; Isoetaceae; Isoetes; Juncaceae; Juncus; Letters; Mann, Horace,</div>
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Mann, Horace,</div>
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