Asks botanical readers to inform him "whether in those monoecious or dioecious plants, in which the flowers are widely different, it has ever been observed that half the flower, or only a segment of it, has been of one sex and the other half or segment of the opposite sex, in the same manner as so frequently occurs with insects?"

Asks readers to examine the flowers of Oxalis bowei to observe where the summits of the branching stigmas stand with respect to the two sets of anthers. In CD’s plants the stigmas stand beneath the lower anthers, but he believes two other forms exist: long-styled and mid-styled. Would be grateful for flowers of these types so he can fertilise them and obtain seed.

Describes the difficulties of crossing papilionaceous flowers. Believes the lack of success is a consequence of the need for early castration and successive applications of pollen on the stigma. Gives details of a method he has used to cross such flowers successfully.