. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. Fig. 34. Chlorophyceae. Pond ^ Scum. Pandorina Morum. a. Floating caenobium.^ b and c. Zoospores, d. Zoospores conjugating. e. Process of conjugation complete, f. Zygo- spores. After Fig. 35. Bladder Wrack. Pucus vesiculosus. a. Section through conceptacle contain- ing oogonia. b. Single oogonium with egg cells, c. Kgg cells escaping, d. Antheridiunl with sperm cells. e. Egg cells in process of fertilization, surrounded by
. A manual of poisonous plants, chiefly of eastern North America, with brief notes on economic and medicinal plants, and numerous illustrations. Poisonous plants. Fig. 34. Chlorophyceae. Pond ^ Scum. Pandorina Morum. a. Floating caenobium.^ b and c. Zoospores, d. Zoospores conjugating. e. Process of conjugation complete, f. Zygo- spores. After Fig. 35. Bladder Wrack. Pucus vesiculosus. a. Section through conceptacle contain- ing oogonia. b. Single oogonium with egg cells, c. Kgg cells escaping, d. Antheridiunl with sperm cells. e. Egg cells in process of fertilization, surrounded by sperm cells. f. Germination of spores, rhizoid below, g. Single sperm cells. After 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 Pammel, L. H. (Louis Hermann), 1862-1931. Cedar Rapids, Ia. , The Torch Press
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