No summary available.
No summary available.
No summary available.
No summary available.
No summary available.
No summary available.
No summary available.
Has read correspondent’s notice on bent cleavage. Refers him to observations on the same fact in South America, p. 160. CD has also suggested a conjectural explanation.
List of references on orchid structure and fertilisation.
Orchid anatomy.
Orchid homologies.
Sensitive responses in Catasetum.
Acropera becoming clear.
T. F. Jamieson impressed by JDH’s work on Himalayan glaciers.
CD is sending an orchid flower; asks JL to identify it.
Also asks if JL can spare a dried flower of another orchid (name forgotten) [which CD describes] so that he can try to trace its ducts or spiral vessels.
Reports events at Down;
has been doing good work on the homologies of orchids.
Asks JDH to look at movement of labellum in an orchid.
Rostellum of Masdevallia.
JDH’s Fernando Po case.
Madeiran fauna pre-glacial according to Oswald Heer.
Orchid anatomy: homologies of column vascularisation.
Primula paper sent to Linnean Society.
Refers CD to a paper which he ought to know: Ch. Fermond, "Faits pour servir à l’histoire générale de la fécondation chez les végétaux", Recueil des travaux de la Société d’émulation pour les sciences pharmaceutiques 3 (1859).
Discusses observations of his own and of John Torrey on dimorphism, especially in Amsinckia.
Is trying to find specimens of Houstonia for CD.
Thanks GB for arranging for his paper ["Two forms of Primula", Collected papers 2: 45–63] and for his photograph.
CD fears he has misinterpreted vascularisation of butterfly orchid flowers.