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. The natural history of plants, their forms, growth, reproduction, and distribution;. Botany. ANGIOSPERM^, DICOTYLEDONES. 775. whorls or one 5-partite whorl. Petals free. Gyii£eceum composed of 2, 3, or several carpels joined together to form a unilocular (or spuriously bilocular), free, superior ovary. Ovules attached to the interior walls of the carpels on ridges, or springing directly from the walls of the ovary (see fig. 4371). The androecium is composed of either one whorl or many whorls of 2-5 stamens; the stamens are free, and generally of equal length, and are not joined together or t
. The natural history of plants, their forms, growth, reproduction, and distribution;. Botany. ANGIOSPERM^, DICOTYLEDONES. 775. whorls or one 5-partite whorl. Petals free. Gyii£eceum composed of 2, 3, or several carpels joined together to form a unilocular (or spuriously bilocular), free, superior ovary. Ovules attached to the interior walls of the carpels on ridges, or springing directly from the walls of the ovary (see fig. 4371). The androecium is composed of either one whorl or many whorls of 2-5 stamens; the stamens are free, and generally of equal length, and are not joined together or to the corolla (see fig. 243, p. 168). The fruit, in most cases, is a many-seeded capsule (see fig. 437 ^); in the genus Fumaria it is a small one-seeded drupe (see figs. 322 ^ and 322 \ p. 427). Sc^V3^V^t^ '. Fig. 436.—J^elumbium specwsum, the Indian Lotus, growing in a marsh, near Pekin (from a photograph). }f^*^^'^f!^^^=^ In the Capparidacese, it is borne on a long stalk. The Resedacese are interesting, in that in many of them the ovary is open from the beginning, the stigmatic tissue being formed by the swollen lips. The Cruciferse form a large and important family of over 200 genera. For systematic purposes they are divided into the following tribes:—Pleurorhizese, Notorhizese, Orthoploceae, Spirolobese, and Diploco- lobese. Annual or perennial herbs and suffrutices with the foliage-leaves in spirals, venation pinnate. Flowers in racemes, hermaphrodite, pseudo - hermaphrodite, actinomorphic and zygomorphic. Floral-leaves difierentiated into calyx and corolla, each of which is composed of two 2-merous whorls. Petals free. Ovary free, superior. The carpels spring from below the end of the conical receptacle, and are of two kinds: the two lower carpels bear no ovules, but form valves, whilst the two. 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
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, bookyear1895