Asks DO to give enclosed [letter?] from John Scott to Hooker.

JS’s work on orchid self-sterility; Acropera has 371250 seeds in one capsule.

Wishes something could be done for Scott.

Struck with corresponding positions of tendrils and flower-stalks in Passiflora. Sends [W. E. Darwin’s] dissection drawings of earliest stages. Infers that tendril is a modified flower peduncle.

Requests DO look at mode of climbing in Tecoma.

Thanks for information on Tecoma.

Cannot believe DO’s statement about Catasetum; is sure C. tridentatum sets seeds in its native country.

CD erred on Acropera, but how is it naturally fertilised?

Encloses memorandum on tendrils. Nature of tendrils in Modecca.

Observations on climbing species of Tacoma. [Tecoma!?]

Discusses homologies of plant organs.

The passion-flower tendril should be considered a modified branch rather than a modified flower. Considers the distinction between the peduncle and the leaf midrib.