. Textbook of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm. Pig. 73.—Details of Pea (Pisum sativum). A, Flower; B, Longitudinal section offlower showing ovary, diadelphous stamens, etc.; C, diadelphous stamens and stylewith stigma; D, pistil of pea flower; E, seed deprived of its coats; F, floral diagram;5 = sepals; p = petals; st = stamens; c = carpel. The movement in the sensitive plants of this family is due to the movementof water from the lower to the upper side of the pulvinus, so that the whole. Fi<;. 74.—A, Floral diagram of
. Textbook of pastoral and agricultural botany, for the study of the injurious and useful plants of country and farm. Pig. 73.—Details of Pea (Pisum sativum). A, Flower; B, Longitudinal section offlower showing ovary, diadelphous stamens, etc.; C, diadelphous stamens and stylewith stigma; D, pistil of pea flower; E, seed deprived of its coats; F, floral diagram;5 = sepals; p = petals; st = stamens; c = carpel. The movement in the sensitive plants of this family is due to the movementof water from the lower to the upper side of the pulvinus, so that the whole. Fi<;. 74.—A, Floral diagram of red bud (Cercis canadensis) of the sub family Caesal-PINOIDE^; B, Diagram of wattle {Acacia lalifolia) ot the subfamily ;b = bract; b = bractlet; 5 = sepals; p = petals; si = stamens; c = carpel; a =axis. leaf drops through a considerable angle. The telegraph plant {Desmo-diiim gyrans) shows spontaneous movements of its leaflets upwards anddownwards, changing their position sometimes by as much as 180°. GENERAL CHARACTERISTICS OF THE LEGUMINOS^ i«3 .standard Inflorescence and Flowers.—The inflorescence is a raceme {goldenchain), an umbel, a spike-like raceme, or a head (capitulum), as in theclovers. The flowers are regular (Mimosa), or mostly irregular with threeto five sepals, and usually five petals with perigynous insertion. Asthere are three types of flowers, their structure may be described by ref-erence to the three subfamiHes, viz.,PapilionoidecB (Fig. 73) CcesalpinoidecBand Mimosoidece (Fig. 74). Thepapilionaceous flowers are
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