Introduction to structural and systematic botany, and vegetable physiology, : being a 5th and revedof the Botanical text-book, illustrated with over thirteen hundred woodcuts . nvolvulusJalapa, and other Mexican species, furnish the Jalap of the more drastic Scammony is derived from the roots of C. Scam-monia of the Levant. There is much less of this in those of Con-volvulus panduratus (Man-of-the-Earth, Wild Potato-vine) : whilethose of C. macrorhizus of the Southern States, which sometimesweigh forty or fifty pounds, arc farinaceous, with so slight an ad-mixture of this matter as t
Introduction to structural and systematic botany, and vegetable physiology, : being a 5th and revedof the Botanical text-book, illustrated with over thirteen hundred woodcuts . nvolvulusJalapa, and other Mexican species, furnish the Jalap of the more drastic Scammony is derived from the roots of C. Scam-monia of the Levant. There is much less of this in those of Con-volvulus panduratus (Man-of-the-Earth, Wild Potato-vine) : whilethose of C. macrorhizus of the Southern States, which sometimesweigh forty or fifty pounds, arc farinaceous, with so slight an ad-mixture of this matter as to be quite inert; as is also the case withthe Batatas, or Sweet Potato, an important article of food. — To thisfamily are appended, as tribes or suborders, 882. Sllbord. Dicliondrea1. Ovaries two to four, either entirelydistinct or with their basilar styles more or less united in plants, with axillary, scape-like, one-flowered peduncles. —Ex. Dichondra. 883. Sllbord. CusCUtlliese. Ovary two-celled; the capsule openingby circumcissile dehiscence, or bursting irregularly. Embryo fili-form, and spirally coiled in fleshy albumen, destitute of cotyledons !. Parasitic, leafless, twining herbs, destitute of green color. Stamensusually furnished with fringed scales within. —Ex. Cuscuta (Dodder). FIG. 1042. A piece of Cuscuta Gronovii, the common Dodder of the Northern United States,of the natural size. 1013. A flower, enlarged. 1044. The same, laid open. 1045. Section ofthe ovary. 1046. Section of the capsule and seeds. 1047. The spiral embryo detached. same in germination. 456 ILLUSTRATIONS OF THE NATURAL ORDERS. 884. Old. SolanaceOB {Nightshade Family) differs from Scrophu-lariaceae chiefly in the regular (rarely somewhat irregular) flowers,with as many fertile stamens as there are lobes to the corolla (fouror five), and some form of the plaited or valvate aestivation of thecorolla. Fruit either capsular or baccate. Embryo slender, mostlycurved, in flesh
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Keywords: ., bookauthorgra, bookcentury1800, bookdecade1860, booksubjectbotany
