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.