. Botany for agricultural students . Botany. STONEWORTS 333 Green Algae because they are green, while others regard them as so different from any of the Algae as to put them in a separate class. They grow in fresh and brackish waters and often form dense masses of vegetation covering large areas. They grow. Fig. 287. — Chara fragUis. A, part of a plant, showing nodes, intemodes, and the two kinds of branches (natural size); B, part of a plant, showing a node bearing sex organs, the oogonium enclosed in its jacket being at o and the antheridium with its shield-shaped wall cells shown at a (X 25
. Botany for agricultural students . Botany. STONEWORTS 333 Green Algae because they are green, while others regard them as so different from any of the Algae as to put them in a separate class. They grow in fresh and brackish waters and often form dense masses of vegetation covering large areas. They grow. Fig. 287. — Chara fragUis. A, part of a plant, showing nodes, intemodes, and the two kinds of branches (natural size); B, part of a plant, showing a node bearing sex organs, the oogonium enclosed in its jacket being at o and the antheridium with its shield-shaped wall cells shown at a (X 25); C, wall cell of the antheridium, showing the stalk-hke projection at the end of which are borne the filaments in the cells of which the sperms are produced (X about 50); at the left of C, two cells of a filament in which the sperms are formed, and a single sperm below. Redrawn from Sachs and Thuret. attached to the bottom and are often so incrusted with calcium carbonate that they are rough and brittle as the name Stoneworts suggests. The plant body has a much branched stem-like axis quite distinctly differentiated into nodes and internodes {Fig. 287).. 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 Martin, John N. (John Nathan), b. 1875. New York : John Wiley & Sons, Inc.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1919
