. A practical course in botany, with especial reference to its bearings on agriculture, economics, and sanitation. Botany. 198 199 200 201 202 Pigs. 198-202.âMargins of leaves: 198, serrate; 199, den- tate ; 200, crenate; 201, undulate; 202, sinuate. {After Gkat.) Not only do leaves of different kinds exhibit these characteristics in varying degrees, but young and old leaves, or those on young and old plants of the same kind, often differ from each other in color, size, shape, texture, mode of attachment, and the like, to such a degree (Figs. 203, 204) that one not familiar with them in both s
. A practical course in botany, with especial reference to its bearings on agriculture, economics, and sanitation. Botany. 198 199 200 201 202 Pigs. 198-202.âMargins of leaves: 198, serrate; 199, den- tate ; 200, crenate; 201, undulate; 202, sinuate. {After Gkat.) Not only do leaves of different kinds exhibit these characteristics in varying degrees, but young and old leaves, or those on young and old plants of the same kind, often differ from each other in color, size, shape, texture, mode of attachment, and the like, to such a degree (Figs. 203, 204) that one not familiar with them in both stages would hardly recognize them as belonging to the same species. The young leaves of eucalyptus, mul- berry, and some oaks afford conspicuous examples of such differences, and they exist between the cotyledons and ma- ture leaves of most plants. Can you see any benefit, in the case of the plant whose leaves you are study- ing, that could be derived from such of the characteristics named above as they may exhibit?. 203 204 Figs. 203, 204. â Leaves of paper mulberry tree: 203, leaf from an old tree; 204, leaf from a two-year- old sprout. Practical Questions â 1. Tell the nature and use of the stipules in such of the following plants as you can find : tulip tree; fig; beech; apple; willow; pansy; garden pea; Japan quince {Pyrus Japonica); sycamore; rose; paper mulberry (Broussonetia).. 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 Andrews, Eliza Frances, b. 1840; Lloyd, Francis Ernest, 1868-1947. ed. New York, Cincinnati [etc. ] American book company
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