. The algae. Algae. ACHNANTHES MINUTISSIMA SYNEDRA RADIANS GOMPHONEMA OLIVACEUM. E4 ^ 3 8' ^ 4 o Jan. Apr. June Sept. Jan. Apr. June Sept. Jan. Apr. June Sept. 4r 3 2 j I I J L. 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 Chapman, V. J. (Valentine Jackson), 1910-. London, Macmillan; New York, St. Martin's Press

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Keywords: ., bo, bookcentury1900, bookcollectionbiodiversity, booksubjectalgae