. Pharmaceutical botany. Botany; Botany, Medical. THE FLOWER 41 as in Clematis. In the reduplicate they are turned outward, as the sepals of Althea. Vexillary, the variety shown in the corolla of the Pea, where the two lower petals are overlapped by two lateral ones, and the four in turn overlapped by the larger upper ones. Contorted, where one margin is invariably exterior and the other interior, giving the bud a twisted appearance, as in the Oleander and Phlox. The Flower The flower is a shoot which has undergone a metamorphosis so as to serve as a means for the propagation of the individual
. Pharmaceutical botany. Botany; Botany, Medical. THE FLOWER 41 as in Clematis. In the reduplicate they are turned outward, as the sepals of Althea. Vexillary, the variety shown in the corolla of the Pea, where the two lower petals are overlapped by two lateral ones, and the four in turn overlapped by the larger upper ones. Contorted, where one margin is invariably exterior and the other interior, giving the bud a twisted appearance, as in the Oleander and Phlox. The Flower The flower is a shoot which has undergone a metamorphosis so as to serve as a means for the propagation of the Fig. 30.—Diagrams of floral structures. A, shows the relations of the floral parts in a hj^ogynous flower. B, The same in a perigynous flower. C, The same in an epigynous flower. D, A stamen. E, A simple pistil in longitudinal section. F, The same in cross-section. G, Transitonal forms between true petals (left) and true stamens (right). H, Slight union of two carpels to form a compound pistil. / and /, Union of carpels more complete. K and L, Cross-sections of com- pound pistils, of three carpels. In B: a, stamen; b, petal; c, sepal; d, pistil; e, receptacle; /, pedicel. In D: a, anther ceU; 6, connective; c, filament. In E: a, stigma; h, style; c, ovules; d, ovary. {From Hamaker.) The parts of the flower are Sepals, Petals, Stamens, and Carpels, all of which are inserted upon a shortened axis called the Receptacle or Torus. This is usually flat or convex, but may be conical and fleshy as in the Strawberry; concave as in the Rose and Fig; or show a disc-like modification, as in the Orange. The axis of a flower cluster, if short, is sometimes called a common receptacle, as in the floral axes of the Dande- lion and 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 Youngken, Heber W. (Heber Wilkin
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbo, booksubjectbotany
