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Darwin Correspondence Project

From Daniel Oliver   20 October 1874


20. X/74

My dear Sir/

The specimens safely back again; Thanks.1

As to Aldrovanda: we have no Indian specimen, but the Indian figure in our coll. drawings as to leaves shews no difference.2

We have a mite of an Australian specn & I have [soaked] off a minute fragment for yr examination.3

Roridula. Of this genus Harvey says simply 2 species, “natives of the Western district” i.e. of Cape Colony—but no detail as to prevalence4

Of Byblis, there are also 2 spp.—

B. liniflora, various Stations in No. Australia & also in Queensland. & B. gigantua. limited to West Australia: Canning river; Swan river region; Port Gregory; Hampden.5

Very sincerely yrs | D Oliver

CD annotations

3.1 We have … examination. 3.2] crossed pencil


See letter to Daniel Oliver, 19 October [1874] and n. 2. CD had returned specimens of Byblis (rainbow plants) and Roridula, both of which are insectivorous plants.
CD discussed the Australian form Aldrovanda vesiculosa var. australis (the waterwheel plant) in Insectivorous plants, pp. 329–30.
Oliver refers to William Henry Harvey and Harvey 1868, p. 18.


Harvey, William Henry. 1868. The genera of South African plants, arranged according to the natural system. 2d edition. Edited by Joseph Dalton Hooker. Cape Town, South Africa: J. C. Juta. London: Longman, Green, Reader, and Dyer.

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


Sends information about Indian and Australian species of Aldrovanda, Roridula, and Byblis.

Letter details

Letter no.
Daniel Oliver
Charles Robert Darwin
Sent from
Source of text
DAR 58.1: 106–7
Physical description
ALS 4pp †

Please cite as

Darwin Correspondence Project, “Letter no. 9689,” accessed on 4 March 2024,

Also published in The Correspondence of Charles Darwin, vol. 22