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].
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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].
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].
Coming to London for Botanical Congress. Requests interview.
Thanks for photograph.
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.
Plans to come to Down on 27 May.
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.