. Essentials of botany. Botany; Botany. 236 ESSENTIALS OF BOTANY of desmids three hundred. The number of individuals is inconceivably great. For example, there are in various. EiG. 167. Polysiphonia, a Red Alga. A, a considerable portion of a female plant about natural size; B, a small bit of a male plant much magniiied, showing the aidherUUa, or sperm- producing organs, a; C, a. minute portion of a female plant (A), showing clustered carpospores enclosed in an urn-shaped enveloiic. parts of the United States, in Africa, in Bohemia, and else- where extensive beds of siliceous shells or cases o
. Essentials of botany. Botany; Botany. 236 ESSENTIALS OF BOTANY of desmids three hundred. The number of individuals is inconceivably great. For example, there are in various. EiG. 167. Polysiphonia, a Red Alga. A, a considerable portion of a female plant about natural size; B, a small bit of a male plant much magniiied, showing the aidherUUa, or sperm- producing organs, a; C, a. minute portion of a female plant (A), showing clustered carpospores enclosed in an urn-shaped enveloiic. parts of the United States, in Africa, in Bohemia, and else- where extensive beds of siliceous shells or cases of fossil diatoms, often from thirty to fifty feet thick, and sometimes. 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 Bergen, Joseph Y. (Joseph Young), 1851-1917. Boston, Ginn
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