Summary

Sexes of algae.

Summary

Continues earlier discussion, admitting his opinions have been modified. Still regards natural selection as one agent of several. States areas of disagreement.

Summary

Thanks CD for his patience and good-nature; does not want a controversial correspondence but wishes to reply to matters in CD’s letter, and does.

Summary

Is pleased that CD has [Roland] Trimen to collect specimens of Cape orchids. Suggests directions for securing dry specimens of what he draws.

Identifies Disa barbata and D. Cornuta of the Ophridiae.

Summary

Sends dandelion [enclosed] with peculiar form of achene; suggests this solitary "sport" must have arisen by sudden jump from normal type.

Summary

The plants from the Cape did not show climbing habit in native country; WHH believes it a consequence of their being grown under disadvantages of climate.

Summary

Identifies South African species of plants that are normally non-climbers in the wild but climb freely when grown from seed at Glasnevin. Thinks there is probably a gradation in the wild between climbing and non-climbing varieties related to the degree of exposure each particular plant faces.

Summary

Has examined his specimens discussed in his previous note and adds further observations.