CHAPTER XII.
ON THE STRUCTURE AND MOVEMENTS OF SOME OTHER SPECIES OF DROSERA.
Drosera anglica Drosera intermedia Drosera capensis Drosera
spathulata Drosera filiformis Drosera binata Concluding remarks.
CHAPTER XIII.
DIONAEA MUSCIPULA.
Structure of the leaves Sensitiveness of the filaments Rapid movement
of the lobes caused by irritation of the filaments Glands, their power
of secretion Slow movement caused by the absorption of animal
matter Evidence of absorption from the aggregated condition of the
glands Digestive power of the secretion Action of chloroform, ether,
and hydrocyanic acid The manner in which insects are captured Use of
the marginal spikes Kinds of insects captured The transmission of the
motor impulse and mechanism of the movements Re-expansion of the
lobes.
CHAPTER XIV.
ALDROVANDA VESICULOSA.
Captures crustaceans Structure of the leaves in comparison with those
of Dionaea Absorption by the glands, by the quadrifid processes, and
points on the infolded margins Aldrovanda vesiculosa, var.
australis Captures prey Absorption of animal matter Aldrovanda
vesiculosa, var. verticillata Concluding remarks.
CHAPTER XV.
DROSOPHYLLUM RORIDULA BYBLIS GLANDULAR HAIRS OF OTHER PLANTS
CONCLUDING REMARKS ON THE DROSERACE .
Drosophyllum Structure of leaves Nature of the secretion Manner of
catching insects Power of absorption Digestion of animal
substances Summary on Drosophyllum Roridula Byblis Glandular hairs of
other plants, their power of absorption Saxifraga Primula
Pelargonium Erica Mirabilis Nicotiana Summary on glandular
hairs Concluding remarks on the Droseraceae.
CHAPTER XVI.
PINGUICULA.
Pinguicula vulgaris Structure of leaves Number of insects and other
objects caught Movement of the margins of the leaves Uses of this
movement Secretion, digestion, and absorption Action of the secretion
5