. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. FRUITS 63. - Winged fruit of the maple. Fig. 15. — Winged fruit of the hop tree. Fruits, beside being seed containers, are often devices for securing the distribution of seeds, a process which is called dissemination or seed dispersal. Two questions naturally arise: (1) What are the ad- vantages in having the seeds widely scattered? (2) What are the ways in which fruits aid in secur- ing this scattering? The answer to the first your own thought will furnis
. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. FRUITS 63. - Winged fruit of the maple. Fig. 15. — Winged fruit of the hop tree. Fruits, beside being seed containers, are often devices for securing the distribution of seeds, a process which is called dissemination or seed dispersal. Two questions naturally arise: (1) What are the ad- vantages in having the seeds widely scattered? (2) What are the ways in which fruits aid in secur- ing this scattering? The answer to the first your own thought will furnish. In its effort to maintain the race it is not enough that each plant produce one other. No kind of plant or animal would survive long at that rate. Life is too uncertain. For one Fig. 14. seed that produces a new plant, hundreds perish. To make sure of a new generation as numerous as its predecessor, each plant must produce many seeds. So each plant appears to be seeking, not only to perpetuate itself, but to populate the world. Its seeds, traveling far from the parent, may find lodgment where none of its own kind compete with it, and, under these easier conditions, it may establish a vigorous new colony. In answer to the second ques- tion, you may remember devices you have seen which secure the scattering of seeds. Perhaps you have noticed the winged fruits of the maple or of the elm. (See Figures 14 and 15.) Think of the wind-blown fruit of the Fig. 16. — Fruit of the cockle- bur. Fig. 17. — Fruit of the stick- 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 Coulter, John G. (John Gaylord), b. 1876. New York, American Book Co
Size: 1769px × 1413px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
