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.
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.
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].
Asks HCW’s help with his experiments on Lythrum salicaria, for which he needs flowers of the rare Lythrum hyssopifolia.
Cover containing some seeds mentioned in the letter to H. C. Watson, 28 May [1864], f.2 (S 4512).
Taeas [?] allied to L. hyssopifolia. [Cover containing packets of seed specimens.] Mentioned in the letter to H. C. Watson, 28 May [1864], f.2 (fS 4512).
Thanks HCW for Lythrum specimens.
CD has at last finished his Lythrum paper. ["Three forms of Lythrum", Collected papers 2: 106–31.]
HCW’s criticisms of CD’s theory.