. Botany for high schools and colleges. Botany. Fig. 83.—Glandular hairs from the petiole of Primula sineiisis, in several stages of develop- ment, a, the beginning of the secretion in the terminal cell; b, hair with a large mass of se- creted matter ; d, an old hair after the removal of the secreted matter, x 142.—After De Bary. (a) Tricbomes are, in gene- ral, easy objects of study. In many cases tbey may be simply scraped off and mounted in alcobol, or in a solution of potash. Fig. 84. Fig. 85. Fig. 86. Fig. 87. Fig. 84.—a', the cell a of Fig. 83 more highly magnified ; a''the same after re
. Botany for high schools and colleges. Botany. Fig. 83.—Glandular hairs from the petiole of Primula sineiisis, in several stages of develop- ment, a, the beginning of the secretion in the terminal cell; b, hair with a large mass of se- creted matter ; d, an old hair after the removal of the secreted matter, x 142.—After De Bary. (a) Tricbomes are, in gene- ral, easy objects of study. In many cases tbey may be simply scraped off and mounted in alcobol, or in a solution of potash. Fig. 84. Fig. 85. Fig. 86. Fig. 87. Fig. 84.—a', the cell a of Fig. 83 more highly magnified ; a''the same after removal of the secretion by treatment with alcohol, x 375.—After De Bary. Fig. 85.—c, end of a hair with large mass of secreted matter ; c', the same after treatment with alcohol, x 375.—After De Bary. Fig. 86.—The end of the hair d, in Fig. 83, more highly magnified, showing the frag- ments of the secretion pnstulc surrounding the terminal cell, which still contains pro- toplasm. X 375 —After De Bary. Fig. 87.—Glandular scale from the hop. A, in its young stage; B, the same some time afterward—the secretion from the cells has pushed out the cuticle and filled the Bpace between it and the cells (in the specimen from which these were drawn the secretion was removed by solution in alcohol), x 142.—After De Bary. after wetting them witb alcobol to free tbem from entangled and en- closed 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 Bessey, Charles Edwin, 1845- [from old catalog]. New York, H. Holt and company
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