RECORD: Darwin, C. R. & Emma Darwin. [ny].04.04-05. Clematis montata in Greenhouse move against sun. CUL-DAR157.1.63. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 4.2023. RN1
NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here.
The volumes CUL-DAR157.1-2 contain notes, abstracts etc. for Darwin's long paper and later book Climbing plants (1865). It was also commercially available as a softbound offprint, F834, F834a. See R. B. Freeman's bibliographical introduction. Items CUL-DAR157.1.11-60 were in a folder marked "Twiners". Items CUL-DAR157.1.61-112 were in a folder marked "Leaf-climbers" and items CUL-DAR157.1.114-147 were in a folder marked "Tendrils". Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin.
[63]
Clematis Montana, in Greenhouse
[Move] against sun.
Ap 4 — 4° 20'
― 5 — 5° 10' Cold day
shoot leans well over. After taking a turn in one direction; then kept straight & reversed its spiral. (I can now see by looking at the several Clematis; Trop. tricolorum Rhodichiton, Bign. unguis (in contrast with B. buxifolia) that all these plants by aid of leaves make a much more open spiral; & becoming in part straight & then reversing spire, they ascend to a much greater height with great economy of stem. — May also aid against wind or very smooth stem.)
(Keep) (Conclusion)
/over
[63v]
This plant has long peduncles, which are sensitive & in twining come against the vertical stick & clasp it admirably — The 3 leaflets have distinct peduncles in young plant, but hardly distinct subsequently; these sub-peduncles are not sensitive to loops of string. — Peduncles become straight again.—
10 inches of string acted on main peduncle
5 do (.82gr) acted on do.
10 inches of thread (.25 gr) acted close to stem
5 inches & do (.125) did not act, but 5 inches of string subsequently acted.
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 19 July, 2023