. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. 296 FLOWERS due to the massing of their small flowers into good-sized A. Advantages.—In connection with pollination, in- florescences are an advantage; that is, it is of advantage to have the flowers in clusters rather than widely separated. Whether pollination be accomplished by wind or by in- sects, the same thing is true. As for wind-pol- linated flowers, evidently they need to be ex- posed in such manner that the pollen is likely to be
. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. 296 FLOWERS due to the massing of their small flowers into good-sized A. Advantages.—In connection with pollination, in- florescences are an advantage; that is, it is of advantage to have the flowers in clusters rather than widely separated. Whether pollination be accomplished by wind or by in- sects, the same thing is true. As for wind-pol- linated flowers, evidently they need to be ex- posed in such manner that the pollen is likely to be blown Fig. 117^. —Inflorescence and leaf of the waterleaf ^^Om them and (.Hydrophyllum canadense); one of the spring flowering upon them. Ev- plants often very abundant in woods. idently, also, ij: is good economy for the plant to expose flowers in clusters rather than singly. It requires more of stem growth to expose flowers borne singly than to expose an equal number* borne in clusters. A further advantage is evident when the stigmas of a number of clustered flowers form a pollen- catching arrangement which would not be possible if the flowers were not close together. This is illustrated by corn. (See Figure loj.) Evidently the many threads of the silk catch pollen better when they are together than they pos- sibly could if they were separate. As for insect-polHnated plants, the nearer the flowers are together, the more visits can be made by an insect in the. 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: 1924px × 1298px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
