. The different forms of flowers on plants of the same species. Plants; Fertilization of plants. Chap. UI. LINUM PEKENNE. 97 expanded than that of L. grandifiorum, and the stigmas of the long-styled form do not diverge greatly from one another; nor do the stamens of either form. Hence insects, especially rather small ones, will not insert their proboscides between the stigmas of the long-styled form, nor between the anthers of either form (Fig. 5), but will strike against them, at nearly right angles, with the backs of their head or thorax. Now, in the long-styled flowers, if each stigma did F
. The different forms of flowers on plants of the same species. Plants; Fertilization of plants. Chap. UI. LINUM PEKENNE. 97 expanded than that of L. grandifiorum, and the stigmas of the long-styled form do not diverge greatly from one another; nor do the stamens of either form. Hence insects, especially rather small ones, will not insert their proboscides between the stigmas of the long-styled form, nor between the anthers of either form (Fig. 5), but will strike against them, at nearly right angles, with the backs of their head or thorax. Now, in the long-styled flowers, if each stigma did Fig. Long-styled form of L. perenne, var. Aitstriacum in its early eondition before the stigmas hare rotated. Tile petals and calyx hare been removed on the near side.* not rotate on its axis, insects in visiting them wonld strike their heads against the backs of the stigmas ; as it is, they strike against that surface which is covered * I neglected to get drawings made from fresh flowers of the two forma. But Mr. Fitch has made the above sketch of a long-etyled flower from diied Bpecimens and from published engravinga. His well-blown skill ensures accuracy in the proportional size of 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 Darwin, Charles, 1809-1882. New York : D. Appleton
Size: 1930px × 1295px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectfe, booksubjectplants
