[B47]

Studies Phy. Lab. Cambridge. Part III. p. 50 Ferment of Nepenthes.

Journl. Linn. Soc. Vol. XVII. p 32.    Frank experiments on Drosera

 

[1880. Journal of the Linnean Society: Botany 17: 32.

Additional Memorandum concerning the Nutrition of Drosera rotundifolia.

 By Francis Darwin, M.B., F.L.S.

Since the reading of my paper on this subject before the Society, and while it was passing through the press (ante, pp. 17-31), I have become acquainted with an important article on the same subject, of which it behoves me to take notice. I allude to the interesting researches of Messrs. Reess, Kellermann, and von Raumer ('Vegetation — versuche an Drosera rotundifolia mit und ohne Fleischfutterung,' ausgeführt von Dr. Ch. Kellermann und Dr. E. von Raumer mitgetheilt von M. Reess. 'Botan. Zeitung,' April 5th, 1878), which were originally described before the Phys.-Med. Society of Erlangen, July 9, 1877. The experiments were essentially similar to my own, and consisted in the varied and detailed comparison of a large number of fed and unfed plants of Drosera. The food-supply consisted of Aphides instead of meat as in my experiments; and this, as being more natural, is probably a better method than the one adopted by me.

The work seems to have been done with great care; and the results demonstrate in the clearest manner the numerous and striking advantages accruing to the fed plants.

— F. D., May 6, 1878.]