CONTENTS. xi 
processes, and points on the infolded margins — Aldrovanda 
vesiculosa, var. australis—Captures prey—Absorption of animal 
matter — Aldrovanda vesiculosa, var. verticillata — Concluding 
POOR a o o e e as a =o — Pages 200-269 
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 
SI o = a e ae n a eee 
CHAPTER XVI. 
PINGUICULA. 
Pinguicula vulgavis—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 on various animal and vegetable substances 
—tThe effects of substances not containing soluble nitrogenous 
matter on the glands—Pinguicula grandiflora—Pinguicula lusi- 
tanica, catches insects—Movement of the leaves, secretion and 
daton e a aa es a a o e o 
CHAPTER XVII. 
UTRICULARIA. 
Utricularia neglecta—Structure of the bladder—The uses of the several 
parts—Number of imprisoned animals—Manner of capture—The 
bladders cannot digest animal matter, but absorb the products of 
its decay—Experiments on the absorption of certain fluids by the 
quadrifid processes—Absorption by the glands—Summary of the 
observation on absorption—Development of the bladders— Uftricu- 
laria vulgaris—Utricularia minor— Utricularia clandestina 
319-347 
