. A contribution to the history of the fresh-water algœ of North America. Botany; Algae. PLATE XVII. AFTER IMATURRBV T. SINCLAIR k 80N. PHILADELPHIA. Fig. 1. SCHIZOMERIS LEIBLEINII " 2. OEOOSONIUM HUNTII. " 3. O. MULTISPORA Fig. 4. SPIROGYRA DUBIA. " 6. S. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wood, H. C. (Horatio C. ), 1841-1920. [Washington, Smithsonian institution

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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1872