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.

DO’s observations on polymorphism in Primula and Campanula. CD recognises three classes of dimorphism, as in Primula, Thymus, and Campanula and violets.

DO’s Campanula paper and Royal Institution lecture [Not. Proc. R. Inst. G. B. 3 (1858–62): 431–3].

CD’s interest in Fumariaceae from A. Gray’s comments on "selfing".

Bees bite holes in flowers when same species grows in high density.

Organisation of CD’s notes.

Discusses primrose ovules,

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

plant migrations;

Corydalis.

Encourages DO to publish his paper and put his name to it. [Paper apparently not published.] Concurs with his views on primordial nature of hermaphroditism.

Requests Oxalis acetosella, which he suspects is dimorphic.

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

Thanks for Oxalis. Only experimentation will show whether disproportion of long- to short-styled flowers is a functional dimorphism.

Case of aestival flowers is very curious.