Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 797
another trigger hair. Ineither case, upon the second contact, the leaf snaps shut upon theinsect.^^ The two lobes close, the midrib serving as a fulcrum;and the spikes interlock. A fluid is secreted; and the insect under-goes digestion. When digestion and absorption of its productsare complete, the… … Vionaa muscipula in its native habitat n?ar Wilmington, North Carolina, showing both openand closed leaves. A leaf in the foreground has opened, but still contains the indigestible residueof its prey. Photograph taken by Charles W. Palmer and Walter Steckbeck, July i, 1917. both the secretion and…
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