. A class-book of botany, designed for colleges, academies, and other seminaries ... Illustrated by a flora of the northern, middle, and western states; particularly of the United States north of the Capitol, lat. 38 3/4. Botany; Plants -- United States; Plants -- Canada. or, if two are present, one is minute or abortive. Such plants are also called ( ENDOGENS (fvJov, inside, yivofx-xt, to originate or grow), because their stems increase by internal accretions (197). Such are the grasses, the palms, the Lihacese, &c., whose leaves are mostly constmcted with parallel veins. 127. Dicotyledon
. A class-book of botany, designed for colleges, academies, and other seminaries ... Illustrated by a flora of the northern, middle, and western states; particularly of the United States north of the Capitol, lat. 38 3/4. Botany; Plants -- United States; Plants -- Canada. or, if two are present, one is minute or abortive. Such plants are also called ( ENDOGENS (fvJov, inside, yivofx-xt, to originate or grow), because their stems increase by internal accretions (197). Such are the grasses, the palms, the Lihacese, &c., whose leaves are mostly constmcted with parallel veins. 127. Dicotyledonous plants^are such as bear seeds with two cotyledons These are also called exogexs (t%a>, outside), because their stems increase by external accretions, including the bean ti-ibe, the melon tribe, all our forest trees) &c. These are also distinguished at a glance,, by the structure of their leaves, which are reticulate-veined, that is, with veins dividing and uniting again, like netwoi'k. \. FIG. 19. — Slructure of seeds and germination ; 1, seed of a garden bean; 2, tlie same after germination is commenced and tlie skin thrown off; 3, seed of Triglochin (mag:nified); a, fungons chalaza, 6, raphe, c, hilum; 4, embryo ; a, cotyledon, 6, radicle, c, fissure, beneath which lies the plumule ; 5, vertical section of the same; rf, the radicle seen beneath the fissure ; G, germinating seed of Alisma ; a, cotyledon, 6, plumule, c, radicle ; 7, seed of Canna lutea, vertical section, a, albumen, 6, embryo; 8, fruit of Mirabilis, showing the commence- ment of germination, the embryo protruding the radicle; 9, the same, having thrown off the pericarp and become a young plant; 10, germinating seed of Calla ^thiopica; a, seed, 6, first leaf of plumule, c, radicle ; 11, section of the fruit of a grass with the embryo at base; 12, the same after germination has commenced; 13, the germination completed, and the young plant formed; 14, embrj-o of Pinus, showing the numerous cotyledons;
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectbotany, bookyear1847
