Text-book of structural and physiological botany . Bilabiate five-toothed calyxoi Lamiufn. trisepalous^ polysepalous^ &c. Among irregular forms ofthe calyx an especially common one is the bilabiate^ or two-lipped (Fig. 230), a gamosepalous calyx divided by twodeep incisions into an upper and under division or lip[particularly characteristic of the order Labiatse]; and notunfrequent are the spui-red (Vxg. 231), furnished with a largeror shorter hollow appendage or spur [as in TropcEolum andImpatiens\\ and the saccate (Fig, 232), which occurs fre-quently in Cruciferae, and consists of four disti
Text-book of structural and physiological botany . Bilabiate five-toothed calyxoi Lamiufn. trisepalous^ polysepalous^ &c. Among irregular forms ofthe calyx an especially common one is the bilabiate^ or two-lipped (Fig. 230), a gamosepalous calyx divided by twodeep incisions into an upper and under division or lip[particularly characteristic of the order Labiatse]; and notunfrequent are the spui-red (Vxg. 231), furnished with a largeror shorter hollow appendage or spur [as in TropcEolum andImpatiens\\ and the saccate (Fig, 232), which occurs fre-quently in Cruciferae, and consists of four distinct sepals?two of which are gibbous at the base. As respects its persistence, the calyx may be caducous^when it is thrown off at the time of expansion of the flower,as in the poppy (Fig. 233); deciduous^ when it falls oif at 126 Stntctural and Physiological Botany. the same time as the corolla; or persistent [when it remainsafter the corolla has fallen]. The calyx generally leaves asmooth scar when it falls off; less often, as in Datura and.
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Keywords: ., bookcentury1800, bookdecade1870, bookpublishernewyorkjwileysons
