Insectivorous plants / by Charles Darwin ; revised by Francis Darwin.

  • Darwin, Charles, 1809-1882.
Date:
1908
Catalogue details

Licence: In copyright

Credit: Insectivorous plants / by Charles Darwin ; revised by Francis Darwin. Source: Wellcome Collection.

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    •processes, and points on the infolded margins—Aldrovanda vesiculosa, var. australis—Captures prey—Absorption of animal matter — Aldrovanda vesiculosa, var. verticillata — Concluding remarks Pages 260-268 CHAPTER XV. Drosophyllum—Roridula—Byblis—Glandular Hairs of other Plants—Concluding Remarks on the Droseracehl 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 Droseraceaj 269-296 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 on various animal and vegetable substances —The effects of substances not containing soluble nitrogenous matter on the glands—Pinguicula grandifiora—Pinguicula lusi- tanica, catches insects—Movement of the leaves, secretion and digestion 297-318 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 bv the quadrifid processes—Absorption by the glands—Summary of the observation on absorption—Development of the bladders—Utricu- laria vulgaris—Utricularia minor—Utricularia clandestina 319-317