. Fundamentals of botany. Botany. 2l6 STRUCTURE AND LIFE HISTORIES many small pieces with a pair of scissors, each piece can regenerate a new plant. In many species the tips of the lobes of the thallus become separated from the plant naturally, by the dying off of portions back from the tip. In such cases each tip develops an entire new individual. A thorough study of these phenomena has led botanists. Fig. i6i.—A liverwort {Lunularia). Below,-portions of the thaUus, showing the lunar-shaped cupules, with brood-buds, or gemmae. Above a single gemma, greatly magnified. to the conclusion that ev
. Fundamentals of botany. Botany. 2l6 STRUCTURE AND LIFE HISTORIES many small pieces with a pair of scissors, each piece can regenerate a new plant. In many species the tips of the lobes of the thallus become separated from the plant naturally, by the dying off of portions back from the tip. In such cases each tip develops an entire new individual. A thorough study of these phenomena has led botanists. Fig. i6i.—A liverwort {Lunularia). Below,-portions of the thaUus, showing the lunar-shaped cupules, with brood-buds, or gemmae. Above a single gemma, greatly magnified. to the conclusion that every cell of a liverwort is able to reproduce an entire plant, just as effectually as though it were a spore. Some species produce little multi- cellular bodies called gemma (Fig. i6i). Other species produce fleshy tubers, richly stored with reserve food- materials,^ and specially valuable in helping the species ' Analogous to tuber-formation in the 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 Gager, C. Stuart (Charles Stuart), 1872-1943. Philadelphia, P. Blakiston's son & co.
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Keywords: ., bookauthorgag, bookcentury1900, bookdecade1910, booksubjectbotany
