The elements of botany for The elements of botany for beginners and for schools elementsofbotany00gray Year: 1887 Section XVI. VEGETABLE LIFE AND WORK. 393. The following simple outlines of the anatomy and physiology of plants (3) are added to the preceding structural part for the better prepar- ation of students in descriptive and systematic botany; also to give to all learners some general idea of the life, growth, intimate structure, and action of the beings which compose so large a part of organic nature. Those who would extend and verify the facts and principles here outlined will use th
The elements of botany for The elements of botany for beginners and for schools elementsofbotany00gray Year: 1887 Section XVI. VEGETABLE LIFE AND WORK. 393. The following simple outlines of the anatomy and physiology of plants (3) are added to the preceding structural part for the better prepar- ation of students in descriptive and systematic botany; also to give to all learners some general idea of the life, growth, intimate structure, and action of the beings which compose so large a part of organic nature. Those who would extend and verify the facts and principles here outlined will use the Physiological Botany of the ' Botanical Text Book,' by Professor Goodale, or some similar book. Fig. 427. Seed of a Sisymbrium, cut across to show the incumbent cotyledons. 428. Embryo of the same, detached whole. Fig. 429. Section of seed of Violet; anatropous with straight axile embryo in the albumen. 430. Section of seed of Rock Rose, Helianthemum Canadense ; orthotropous, with curved embryo in the albumen. 430'. Section of a grain of Rice, lengthwise, showing the embryo outside the albumen, which forms the principal bulk. Fig. 431. Seed of a Chickweed, campylotropous. 432. Section of same, show- ing slender embryo coiled around the outside of the albumen of the kernel.
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