. A manual of botany. Botany. MORPHOLOGY OF REPRODUCTIVE ORGANS 189 monooarpellary ovary has two sutures, one which corresponds to the union of the margins of the lamina of the carpellary leaf, and is turned towards the axis of the plant; and another which corresponds to the midrib of the lamina, and is directed to- wards the floral envelopes or the circumference of the flower ; the former is called the ventral (fig. 399, •us), the latter the dorsal (ds) suture. The Pistil.—When the gynoecium is formed of but one carpel, as in the Broom {fig. 396) and Pea (fig. 406), it is, as we Fig. 400. Fig
. A manual of botany. Botany. MORPHOLOGY OF REPRODUCTIVE ORGANS 189 monooarpellary ovary has two sutures, one which corresponds to the union of the margins of the lamina of the carpellary leaf, and is turned towards the axis of the plant; and another which corresponds to the midrib of the lamina, and is directed to- wards the floral envelopes or the circumference of the flower ; the former is called the ventral (fig. 399, •us), the latter the dorsal (ds) suture. The Pistil.—When the gynoecium is formed of but one carpel, as in the Broom {fig. 396) and Pea (fig. 406), it is, as we Fig. 400. Fig. 401. Fig. 402. Fig. 403. Fig. Fig. 400. A portion of the pistil of Daphne Laureola. y. Smamit of the ovary, t. Style terminated by a stigma, s. Fif/. 401. A portion of the pistil of Plantago saxatilis. o. Summit of the ovary, t. Style, s, s. Bi- lateral stigma. The above figures are from Jussieu. Fig. 402. Pistil of the Periwinkle {Viiica). o. Ovary, t. Style, s. Hairy stigma, d. Disc. Fig. 403. Ventral view of the pistil of Isoptjrum hicerrtatunif showing the double stigma. Fig. 404. Pistil of wheat {Triticum sativum) surrounded by three stamens and three squamulse, sp. Two feathery styles or stigmas arise from the top of the ovary. have already seen, called simple, and the terms gyncecium or pistil, and carpel are then synonymous ; when there is more than one carpel, the pistil or gynoscium is termed compound [figs. 395 and 410). In a compound pistil, again, the carpels may be either separate from each other, as in the Stonecrop (fig. 284) and Pheasant's-eye (fig. 410); or united into one body, as in the Primrose (fig. 395), Carnation (fig. 405), and Tobacco (fig. 397) : in the former case the pistil is said to be apocarpous, in. 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 Green, J. Reynold
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