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Updated: May 4, 2025
In short, the experiments show "that there is a remarkable accordance in the power of digestion between the gastric juice of animals, with its pepsin and hydrochloric acid, and the secretion of Drosera, with its ferment and acid belonging to the acetic series. We can, therefore, hardly doubt that the ferment in both cases is closely similar, if not identically the same.
With the genuine love of Nature and fondness for exploration, 'William Bartram did not inherit the simplicity of his father, the earliest native botanist of this country. In this preface he declares that "all the Sarracenias are insect-catchers, and so is the Drosera rotundifolia.
The evidence from experiment, shortly summed up, is, that insects alive or dead, and also other nitrogenous bodies, excite these glands to increased secretion; the secretion then becomes acid, and acquires the power of dissolving solid animal substances that is, the power of digestion in the manner of Drosera and Dionaea.
'I was calling to see Nanny, and I took the opportunity of bringing Lady Agnes the plant I was telling her about as growing on Cumnor Moss. 'Thank you so much, Mr. Gibson. Mamma, look! this is the Drosera rotundifolia I have been wanting so long. 'Ah! yes; very pretty I daresay, only I am no botanist. Nanny is better, I hope?
Darwin has written a well-known work on the movements of climbing plants. He studied also the contrivances of certain insectivorous plants, such as the Drosera and the Dionaea, to seize their prey. The leaf-movements of the acacia, the sensitive plant, etc., are well known.
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