. Lectures on the evolution of plants. Botany; Plants. 210 EVOLUTION OF PLANTS ceae), as well as many others more or less familiar. (Fig. 51, C, D.) The order TricoccEe, of somewhat doubtful affinity, in- cludes the single family Euphorbiacese with the various species of Euphorbia as types. A few are cultivated, like the familiar castor-bean (Ricinus), and the showy. Fig. 51 (Higher Choripetalae). — A, wall-flower (Cheiranthus); the parts of the flower are definite in number; B, the six stamens, the two outer ones shorter than the others, and the pistil, car, made up ol two cohe- rent carpels;
. Lectures on the evolution of plants. Botany; Plants. 210 EVOLUTION OF PLANTS ceae), as well as many others more or less familiar. (Fig. 51, C, D.) The order TricoccEe, of somewhat doubtful affinity, in- cludes the single family Euphorbiacese with the various species of Euphorbia as types. A few are cultivated, like the familiar castor-bean (Ricinus), and the showy. Fig. 51 (Higher Choripetalae). — A, wall-flower (Cheiranthus); the parts of the flower are definite in number; B, the six stamens, the two outer ones shorter than the others, and the pistil, car, made up ol two cohe- rent carpels; C, flower of Oxalis, the parts perfectly symmetrical, and in fives; D, the ten stamens, an, in two sets of five each, and the five carpels, st; E, flower of a Spiraea, one side removed to show the five free carpels, car, and the numerous stamens inserted upon the calyx margin; F, flower of the common pea (Pisum), showing marked zygo- morphy; G, the ten stamens, one of them free, and the single carpel, car, of the pea; H, a flower of Fuchsia, with " inferior " ovary, o, and showy colored sepals. Crotons and Poinsettia of the greenhouses. The flowers in all Euphorbiaceae are inconspicuous, but it is common for them to develop showy bracts about the clusters of flowers, and these serve the same purpose as the .showy petals of other Choripetalse. The most specialized as well as the most numerous. 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 Campbell, Douglas Houghton, 1859-1953. New York, The Macmillan Co. , London, Macmillan & Co. , Ltd.
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Keywords: ., bookcentury1800, bookdecade, booksubjectbotany, booksubjectplants
