The elements of botany for The elements of botany for beginners and for schools elementsofbotany00gray Year: 1887 Iusects are caught, and per- climbing; and this bears a pitcher with a lid. haps digested, in the pitcher. 173. Leaves as Fly-traps. Insects are caught in another way, and more expertly, by the most extraordinary of all the plants of this country, the Diousea or Venus's Fly- trap, which grows in the sandy bogs around Wilmington, North Carolina. Here (Fig. 170) each leaf bears at its summit an appen- dage which opens and shuts, in shape some- thing like a steel-trap, and operating
The elements of botany for The elements of botany for beginners and for schools elementsofbotany00gray Year: 1887 Iusects are caught, and per- climbing; and this bears a pitcher with a lid. haps digested, in the pitcher. 173. Leaves as Fly-traps. Insects are caught in another way, and more expertly, by the most extraordinary of all the plants of this country, the Diousea or Venus's Fly- trap, which grows in the sandy bogs around Wilmington, North Carolina. Here (Fig. 170) each leaf bears at its summit an appen- dage which opens and shuts, in shape some- thing like a steel-trap, and operating much like one. For when open, no sooner does a lly alight on its surface, and brush against any one of the two or three bristles thai grow there, than the trap suddenly closes, captur- ing the intruder. If the fly escapes, the trap soon slowly opens, and is ready for another capture. When retained, the insect is after a time moistened by a secretion from mi- nute glands of the inner surface, and is digested. In the various species of Drosera or Sundew, insects are caught Flo. 174. Leaf of Sarracenia purpurea, entire, and another with the upper part cut off. Fio. 17a. Leaf of Nepenthes; foliage, tendril, and pitcher combined. Fig 17b\ Leaves of Dionaca; the trap in one of them open, in the others closed.
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