. The different forms of flowers on plants of the same species. Chap. I. PRIMULA VULGARIS. 35 that the two lots together consisted of 83 long-styled and 96 short-styled plants. In the long-styled form the pistil is to that of the short-styled in length, from an average of five measurements, as 100 to 51. The stigma in the long-styled form is conspicnonsly more globose and much more papillose than in the short- styled, in which latter it is depressed on the summit; Fig. Outlines of poHen-g«-aiiis o{ Primula vuljaris, distended with watei, much magnified and drawn under the camera lucida. Th
. The different forms of flowers on plants of the same species. Chap. I. PRIMULA VULGARIS. 35 that the two lots together consisted of 83 long-styled and 96 short-styled plants. In the long-styled form the pistil is to that of the short-styled in length, from an average of five measurements, as 100 to 51. The stigma in the long-styled form is conspicnonsly more globose and much more papillose than in the short- styled, in which latter it is depressed on the summit; Fig. Outlines of poHen-g«-aiiis o{ Primula vuljaris, distended with watei, much magnified and drawn under the camera lucida. The upper and smaller g^-ains from the long-styled form; the lower and larger gi'ains from the short-styled. it is equally broad in the two forms. In both it stands nearly, but not exactly, on a level with the anthers of the opposite form; for it was found, from an average of 15 measurements, that the distance between the middle of the stigma and the middle of the anthers in the short-styled form is to that in the long-styled as 100 to 93. The anthers do not differ in size in the two forms. The pollen-grains from the short-styled. 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 and Co.
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