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Subjects: (Eduard),; 1796-1873; 1805-1877; 1809-1884; 1810-1888; 1815-1892; 1827-1891; Braun, Alexander,; Cactaceae; Climatic factors; Convovulaceae; Correspondence; Cuscuta; Engelmann, George,; Euphorbia; Euphorbiaceae; Gray, Asa,; Japan; Juncaceae; Juncus; Letters; Maximowicz, C. J.,; Pinaceae; Pinus; Plants; Regel, E; Rosaceae; Rubus; Russia; Seeds; Torrey, John,; Vitaceae; Vitis</div>
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Regel, E.</div>
Internet Archive identifier