. Class-book of botany [microform] : being outlines of the structure, physiology, and classification of plants : with a flora of the United States and Canada. Botany; Botany; Plants; Plants; Botanique; Botanique; Plantes; Botanique. THE FLORAL ENVELOPS, OR PERIANTH. •0 45V. TJncon. AVc liavc seen tliat the floral organs are often in va- rious ways united. Considering their crowded state in the flower, we rather wonder that they do not always coalesce in their growth. 458. The calyx with united sepals was called by the early botanists monosepalous ; the corolla with united petals was called mon
. Class-book of botany [microform] : being outlines of the structure, physiology, and classification of plants : with a flora of the United States and Canada. Botany; Botany; Plants; Plants; Botanique; Botanique; Plantes; Botanique. THE FLORAL ENVELOPS, OR PERIANTH. •0 45V. TJncon. AVc liavc seen tliat the floral organs are often in va- rious ways united. Considering their crowded state in the flower, we rather wonder that they do not always coalesce in their growth. 458. The calyx with united sepals was called by the early botanists monosepalous ; the corolla with united petals was called monopetaloua {jiovog, one—from the false idea that such an organ consisted of a sin- gle piece or leaf!). Opposed to these terms were polypetalous (irol^ig many), petals distinct, and polysepalous, sepals distinct. * 459. The monosepalous calyx, or monopetalous corolla, al- though thus compounded of several pieces, is usually described as a simple organ, wheel-shaped, cup-shaped, tubular, according to the de- gree of cohesion. The lowef part of it, formed by the united claws whether long or short, is the tube ; the upper part, composed of the' confluent lammte, is the border or limb ; the opening of the tube above is the throat. 460. The border is either lobed, toothed, crenate, etc., by the dis- tinct ends of the pieces composing it, as in the calyx of pink the calyx and corolla of Primula, Phlox, and bell wort, or it may become by a complete lateral cohesion, entire, as in morning-glory. Here the comr pound nature of the organ is shown by the scams alone. 800 802. un^S/wiTh I "^^'*P''"«:''» (bouncing bet) ; pntrls and claw8 quite .listinct. 801, Phlox; claw/ 461. A terminal cohesion, where summit as well as sides are joined forming a cap rather than cup, rarely occurs, as in the calyx of the garden Escholtzia and the corolla of the grape. 462. The modcs of adhesion are various and important, famishing some of the most valuable distinctive chi^racters. An organ is
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, booksubjectpl