[68] See the elder De Candolle, in ‘Transact. of Hort. Soc.,’ vol. v.; and Metzger ‘Kohlarten,’ etc.
[69] ‘Gardener’s Chronicle,’ 1859, p. 992.
[70] Alph. De Candolle, ‘Géograph. Bot.’ pp. 842 and 989.
[71] ‘Gardener’s Chron.,’ Feb. 1858, p. 128.
[72] ‘Kohlarten,’ s. 22.
[73] Godron, ‘De l’Espèce,’ tom. ii. p. 52; Metzger, ‘Kohlarten,’ s. 22.
[74] ‘Géograph. Bot.,’ p. 840.
[75] Godron, ‘De l’Espèce,’ tom. ii. p. 54; Metzger, ‘Kohlarten,’ s. 10.
[76] ‘Gardener’s Chron. and Agricult. Gazette,’ 1856, p. 729. See, more especially, ibid., 1868, p. 275: the writer asserts that he planted a variety of cabbage (B. oleracea) close to turnips (B. rapa) and raised from the crossed seedlings true Swedish turnips. These latter plants ought, therefore, to be classed with cabbages or turnips, and not under B. napus.
[77] ‘Gardener’s Chron. and Agricult. Gazette,’ 1855, p. 730.