. The different forms of flowers on plants of the same species. Plants; Fertilization of plants. 288 DICECIOUS AND Cuap. VIL those in the allied genus Celastnis are said to be " ; If a nnniber of bushes of our spindle-tree be examined, about half will be found to have stamens equal in length to the pistil, with well- developed anthers; the pistil being likewise to all appearance well developed. The other half have a perfect pistil, with the stamens short, bearing rudi- mentary anthers destitute of pollen; so that these bushes are females. All the flowers on the sam


. The different forms of flowers on plants of the same species. Plants; Fertilization of plants. 288 DICECIOUS AND Cuap. VIL those in the allied genus Celastnis are said to be " ; If a nnniber of bushes of our spindle-tree be examined, about half will be found to have stamens equal in length to the pistil, with well- developed anthers; the pistil being likewise to all appearance well developed. The other half have a perfect pistil, with the stamens short, bearing rudi- mentary anthers destitute of pollen; so that these bushes are females. All the flowers on the same plant present the same structure. The female corolla is smaller than that on the poUeniferous bushes. The two forms are shown in the accompanying drawings. Fig. Hermaphrodite or male. Female. EuoNYMtrs EUROP^TJS. 1 did not at first doubt that this species existed under an hermaphrodite and female form; but we shall presently see that some of the bushes which appear to be hermaphrodites never produce fruit, and these are in fact males. The species, therefore, is poly- gamous in the sense in which I use the term, and tri- oicous. The flowers are frequented by many Diptera and some small Hymenoptera for the sake of the nectar secreted by the disc, but I did not see a single bee at work; nevertheless the other insects sufficed to. 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


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectplants, bookyear1896