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Darwin Correspondence Project

To H. N. Ridley   16 April [1877]1

Down, | Beckenham, Kent. | Railway Station | Orpington. S.E.R.

April. 16th

Dear Sir

I am much obliged to you for so kindly sending me the Saxifrage, & am glad to hear about the gnats.—2 In my book on Insectivorous Plants, I have shown that the glands in this genus certainly possess some power of absorption.—3

Dear Sir | Yours faithfully | Ch. Darwin


The year is established by the relationship between this letter and the letter from H. N. Ridley, 15 April 1877.
Ridley had sent CD specimens of Saxifraga tridactylites (rue-leaved saxifrage) with small gnats attached to the sticky hairs of the stems (see letter from H. N. Ridley, 15 April 1877).
See Insectivorous plants, pp. 345–48; CD mentioned Saxifraga tridactylites in a note on p. 346.


Insectivorous plants. By Charles Darwin. London: John Murray. 1875.


Thanks for Saxifraga. CD had shown in Insectivorous plants [pp. 345–7] that this genus had some powers of absorption.

Letter details

Letter no.
Charles Robert Darwin
Henry Nicholas Ridley
Sent from
Source of text
Royal Botanic Gardens, Kew (Letters to H. N. Ridley CLE–GUR, 1878–81: f. 43)
Physical description

Please cite as

Darwin Correspondence Project, “Letter no. 10931,” accessed on 26 October 2021,