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The botanical atlas Plate IX . CRYPTOGAMS VOLVOX GLOBATOR PLATE IX Fig FertUjxaJtwn of Oogo niiwi Fig Fortiori of periphery qf Yolvox sphere Fig Unripe Oosp ore Fig Anthmdzum witli its bundle of fyXFscapedAithrowids in active trwvemmb Fig Antheroxoids killed with iodine Engraved Printed and Priblislied Try AX Johnston Edinburgh