Summary

Discusses the cleistogamous flowers of Oxalis. Thinks they may not be truly cleistogamous but merely arrested or imperfectly developed normal flowers.

Summary

Thanks for Forms of flowers.

Alexander Dickson would like to know whether anyone has described the epidermal cells lining the pitcher of Cephalotus.

Summary

Envelope containing specimens (apparently mentioned in the letter from Daniel Oliver 27 February 1863 (S 4015)).

Summary

Extracts from botanical literature dealing with Dionaea, intercrossing, and sensitivity. [Bot. Ztg. (1833): 96; Thomas Nuttall, Genera of N. American plants (1818)].

Summary

Cites descriptions of melastomads in C. V. Naudin, Annales des Sciences Naturelles 3d ser., vols. 12–18.

Summary

CD’s observations on preference of Drosera for milk and nitrogenous fluids, and the effect of nitrate of ammonia are interesting. Asks whether CD is satisfied that the effect is not due to density of fluid or to a chemical irritant. His own observations suggest such possibilities.

Summary

His results with pure gum on Drosera spathulata entirely support CD’s opinion. Other observations on insectivorous plants.

Summary

Quotes note by Julius Milde on Drosera rotundifolia from Botanische Zeitung (1852): 540.

Summary

Dr Hooker has given him CD’s memorandum on the fly-catcher.

Copies out extract from Curtis’ Botanical Magazine [On Apocynum androsæmifolium, 8 (1794): tab.]: 280 and gives a further reference in Erasmus Darwin’s The loves of plants [1789]. Suggests that they look at Apocynum.

Summary

List of references on orchid structure and fertilisation.

Summary

Finds no trace of nectar in Stanhopea saccata.

Summary

Refers CD to a paper which he ought to know: Ch. Fermond, "Faits pour servir à l’histoire générale de la fécondation chez les végétaux", Recueil des travaux de la Société d’émulation pour les sciences pharmaceutiques 3 (1859).

Summary

Now believes flowers of Fumariaceae must be self-fertilised.

Planning a piece on dimorphism in the Natural History Review ["On the two forms, or dimorphic condition, in the species of Primula … by Charles Darwin", n.s. 2 (1862): 235–43].

Observations on Campanula dimorphism.

Summary

Distinguishes two kinds of floral dimorphism: that affecting sexual organs and that affecting outer envelopes.

Summary

Thanks for Orchids.

Summary

Sends orchids from W. H. Gower.

Summary

Sends flowers with anthers of two colours.

Summary

Has given directions to save seeds of Lythrum hyssopifolium.

CD’s diagram of Lythrum salicaria is very remarkable. [See Collected papers 2: 107.]

Summary

Discusses primrose ovules,

Atlantis paper [Nat. Hist. Rev. (1862): 149–70],

plant migrations;

Corydalis.

Summary

Informs CD of possible dimorphism of Epilobium angustifolium.