Summary

Requests copy of paper read at Amsterdam Horticultural Congress, on graft-hybrids like that of Cytisus adami [see 5018].

Summary

Thanks RC for photograph and for papers, which are of highest interest to CD. He is not fully convinced about the rose by RC’s graft-hybrid paper [Bull. Congr. Int. Bot. & Hortic. Amsterdam (1865): 65–80]. Still retains faith in his own view that no plant is perpetually self-fertilised.

Summary

Will send English edition [of Variation] when available.

Mentions revisions in second issue concerning graft-hybrids.

Asks for Euryale seed for experiment.

Discusses fertility of crossed and self-fertilised plants.

Summary

Data on good and bad pollen-grain yields of different species. Sends sketches of two male Rhamnus catharticus flowers [see Forms of flowers, p. 294].

Summary

Thanks for copy of Cross and self-fertilisation.

Francis Darwin’s observation of nectaries in Pteris is most curious.

Doubts cross-fertilisation in the rare cases of two flowers on the same stalk in Victoria and Euryale.

Summary

Sends papers on graft-hybrids ["Sur les hybrides obtenus par la greffe", Bull. Congr. Int. Bot. & Hortic. Amsterdam (1865): 65–80, and "Über Mischlinge, durch Pfropfen entstanden", Sitzungsber. K. Phys.-oekon. Ges. Königsberg 6 (1865): 11–21].

Summary

Coming to London for Botanical Congress. Requests interview.

Thanks for photograph.

Summary

Thanks CD for invitation. Solicitous of CD’s health. Will let Hooker decide whether CD’s health will allow his visit.

[Alexander] Braun in poor health.

Summary

Plans to come to Down on 27 May.

Summary

Discusses the flowers of, and cross- and self-fertilisation in, certain aquatic plants. Gives cases of dichogamy and perfect self-fertility.

Summary

Finds important differences between English and German versions of Variation on graft-hybrids.

Experiments and observations on submerged flowers.