Gives CD an instance of facts that can be read either way as to whether a plant (Veronica humifusa) is a species or a variety.
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Gives CD an instance of facts that can be read either way as to whether a plant (Veronica humifusa) is a species or a variety.
Comments on the travels of JDH.
Genera plantarum a most worthy undertaking.
Criticisms of the Darwin–Hooker understanding of HCW’s views of convergence.
Regrets he cannot assist the fulfilment of CD’s request for a specimen of the orchid Corallorhiza.
Asks whether one of Balfour’s students could obtain specimens of Corallorhiza from Ravelrig bog outside Edinburgh for CD.
Distribution of varieties and subspecies.
George Maw’s review of the Origin [Zoologist 19 (1861): 7577–611].
The Primula experiments of J. Sidebotham; HCW’s distrust of the results [see J. Sidebotham, "Specific identity of the cowslip and the primrose", Phytologist 3 (1849): 703–5].