. 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. mbryo of the future plant. All that is certainlyknown, however, is, that the embryo first appears in the ovuleshortly after the pollen tube enters it. CHAPTER VII. THE FLOWER.§5. OF THE CALYX. 95. The term calyx comes from the Greek, and signifies acup. It is appHed to the outer whorl of the floral envelopes, inreference to its common form and position. It is generallygreen,
. 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. mbryo of the future plant. All that is certainlyknown, however, is, that the embryo first appears in the ovuleshortly after the pollen tube enters it. CHAPTER VII. THE FLOWER.§5. OF THE CALYX. 95. The term calyx comes from the Greek, and signifies acup. It is appHed to the outer whorl of the floral envelopes, inreference to its common form and position. It is generallygreen, but is sometimes colored, that is, it is of some other coloithan green. It seems designed for the protection of the moredehcate organs of the flower in aestivation (in the bud). 96. Tlie di\dsions of the calyx are called sepals, which are 46 THE FLOWER. sometimes distinct, but generally cohere by their edges, to agreater or less extent, forming a cup as in the rose, or a tube asin the pink. The culyx is then said to be monosepalous, a termwhich must never be literalhj applied, since no true calyx canconsist of merely a smgle sepal; when the sepals are not unitedin any degiee, the calyx is said to be 97. If the calyx is free, thatis, distinct from the ovary, asin the pink, it is said to be in-ferior, wliile the ovaiy is supe-rior ; but if the calyx be adhe-rent to the sides of the ovary,so as to appear to grow out ofits summit, as in the rose, it issaid to be superior. (Fig. 13 ; FIG. 13. —3, Ovary, with adherent (superior), j^ 3 \persistent calyx ; 1, vertical section of the same, showing the epigjnous (Gr. t i-i rr- ?, n aniiier. when it lalls on as the flower decays, Ex. water lily; and persistent, when it remains uponthe germ after the corolla has fallen; Ex. rose, apple. 99. The cal^r
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectbotany, bookyear1848
