Introduction to structural and systematic botany, and vegetable physiology, : being a 5th and revedof the Botanical text-book, illustrated with over thirteen hundred woodcuts . y albumen. 412 ILLUSTRATIONS OF THE NATURAL ORDERS. extractive matter. Polygala Senega (Seneca Snakeroot) is themost important medicinal plant of the family. Other species areemployed medicinally in Brazil, Peru, Nepaul, &c.; where, likeour own, they are reputed antidotes to the bites of venomousreptiles. 803. Ord. KrameriacCSB {Rhatany Family) consists of the genusKrameria only, which has ordinarily been annexed to the


Introduction to structural and systematic botany, and vegetable physiology, : being a 5th and revedof the Botanical text-book, illustrated with over thirteen hundred woodcuts . y albumen. 412 ILLUSTRATIONS OF THE NATURAL ORDERS. extractive matter. Polygala Senega (Seneca Snakeroot) is themost important medicinal plant of the family. Other species areemployed medicinally in Brazil, Peru, Nepaul, &c.; where, likeour own, they are reputed antidotes to the bites of venomousreptiles. 803. Ord. KrameriacCSB {Rhatany Family) consists of the genusKrameria only, which has ordinarily been annexed to the Polyga-lacea? ; but the position of the parts of the flower is more like thatof the Leguminosa?, having the odd sepal inferior, a simple unilocu-lar pistil, and an exalbuminous seed. In fact it is technically distin-guishable from the latter chiefly by the hypogynous stamens and thewant of stipules. The roots contain a red coloring matter, and areastringent without bitterness. Rhatany-root, used to adulterate port-wine, and as an ingredient in tooth-powders, &c, is the produce ofK. triandra of Peru. That of our own Southern species possessesthe same 804. Ord. IcgliminoSEe {Pulse Family). Herbs, shrubs, or trees,with alternate and usually compound leaves, furnished with stipules. FIG. 796. A flowering branch of Lathyrus palustris, var. myrtifolius. 797. The corolladisplayed : a, the vexillum or standard; i, the alae or wings ; c, the two petals of the carinaor keel. 798. The keel-petals in their natural situation. 799. The stamens and pistil, en-larged ; the sheath of filaments partly turned back. EXOGENOUS OR DICOTYLEDONOUS PLANTS. 413 Calyx mostly of five sepals, more or less united ; the odd sepal in-ferior (Fig. 358). Corolla of five petals, either papilionaceous orregular. Stamens perigynous, or sometimes hypogynous. Ovarysingle and simple. Fruit a legume, various forms of which areshown in Fig. 580, 581, 800-807. Seeds destitute of albumen, orwith a mere vest


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Keywords: ., bookauthorgra, bookcentury1800, bookdecade1860, booksubjectbotany