. The biology of Stentor. Stentor. 26 THE BIOLOGY OF STENTOR 7. Cystment Hibernation in a cyst may be regarded as a response of Stentor to adverse conditions. Stein's is the only published account and characteristically he provided beautiful illustration of coeruleus and polymorphus cysts (1867, Tafeln V and VI). Although the final test of excystment was lacking, he can hardly have been mistaken because the coeruleus capsules retained the blue-green striping and the polymorphus were of similar form, with chlorellae and colorless stripes. In both, the feeding organelles were dedifferentiated an
. The biology of Stentor. Stentor. 26 THE BIOLOGY OF STENTOR 7. Cystment Hibernation in a cyst may be regarded as a response of Stentor to adverse conditions. Stein's is the only published account and characteristically he provided beautiful illustration of coeruleus and polymorphus cysts (1867, Tafeln V and VI). Although the final test of excystment was lacking, he can hardly have been mistaken because the coeruleus capsules retained the blue-green striping and the polymorphus were of similar form, with chlorellae and colorless stripes. In both, the feeding organelles were dedifferentiated and the animal rested within a flask-shaped cyst with a gelatinous plug (Fig. 4). Only once have I seen coeruleus apparently beginning encystment within a membrane inside which A. B. 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 Tartar, Vance, 1911-. New York, Pergammon Press
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