To Lawson Tait 13 June [1875]1
Abinger Hall | Wotton Surrey
June 13th
My dear Sir
All the part in my Book on the Droseraceæ is printed off, so it wd. be of no use sending me the details of your observations.—2 Judging from mine the ferment is not present in the secretion of D. rotundifolia until the glands have been excited by absorbing a peptogene (Schiff).3 But I believe the ferment is ready secreted by Drosophyllum;4 & as D. binata (= dichotoma) is more nearly allied to Drosophyllum than any other sp. of Drosera, the ferment may be ready secreted in this species.—
I was aware that the secretion of D. rotundifolia curdles milk, like rennet & like the secretion of Pinguicula, but my observations were not detailed enough to do more than just allude to subject.—5
Yours sincerely | Ch. Darwin
Footnotes
Bibliography
Correspondence: The correspondence of Charles Darwin. Edited by Frederick Burkhardt et al. 29 vols to date. Cambridge: Cambridge University Press. 1985–.
Insectivorous plants. By Charles Darwin. London: John Murray. 1875.
Schiff, Moritz. 1867. Leçons sur la physiologie de la digestion, faites au Muséum d’histoire naturelle de Florence. 2 vols. Florence: Hermann Loescher.
Summary
RLT’s observations come too late, as CD’s book on Droseraceae has been printed.
Reports on his observations of ferment in secretions in Drosera rotundifolia and Drosophyllum.
Letter details
- Letter no.
- DCP-LETT-10017
- From
- Charles Robert Darwin
- To
- Robert Lawson (Lawson) Tait
- Sent from
- Abinger Hall
- Source of text
- DAR 221.5: 26
- Physical description
- ALS 2pp (photocopy)
Please cite as
Darwin Correspondence Project, “Letter no. 10017,” accessed on 20 April 2024, https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-10017.xml
Also published in The Correspondence of Charles Darwin, vol. 23