Remembers Hooker's encouragement when he was "utterly weary of life". Marvellous about European forms in Fernando Po. C. V. Naudin will publish a book on hybridity ["Nouvelles recherches sur l'hybridité dans les végétaux", Nouv. Arch. Mus. Hist. Nat. Paris 1 (1865): 25–176; part also in Ann. Sci. Nat. (Bot.) (1863)]. Darwin fears Naudin has underestimated distribution of pollen by insects. Melastomatous plants are ready for his work on meaning of two sets of anthers. Very curious about Masdevallia. George [Darwin] observing orchids. Adaptation of Herminium beats almost every other orchid.
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