. Essentials of botany. Botany; Botany. I II Fig. 148. Barbs and Hooks of Burs. I, barbed points from fruit of beggar's-ticks (magnified eleven times); II, hook of cocklebur (magnified eleven times); III, beggar's-ticks fruit (natural size); IV, cocklebur hook (natural size). amount of sugar and other food material which they con- tain is very considerable. It is a well-recognized principle of botany, and of zoology as well, that plants and animals do not make unrewarded outlays for the benefit of other species. Evidently the pulp of fruits is not to be consumed or used as food by the plant it
. Essentials of botany. Botany; Botany. I II Fig. 148. Barbs and Hooks of Burs. I, barbed points from fruit of beggar's-ticks (magnified eleven times); II, hook of cocklebur (magnified eleven times); III, beggar's-ticks fruit (natural size); IV, cocklebur hook (natural size). amount of sugar and other food material which they con- tain is very considerable. It is a well-recognized principle of botany, and of zoology as well, that plants and animals do not make unrewarded outlays for the benefit of other species. Evidently the pulp of fruits is not to be consumed or used as food by the plant itself or (in general) by its. 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 Bergen, Joseph Y. (Joseph Young), 1851-1917. Boston, Ginn
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1908