[108] ‘Gardener’s Chronicle,’ 1860, p. 672, with a woodcut.
[109] See ‘Gardener’s Chronicle,’ 1869, p. 220.
[110] ‘Gardener’s Chronicle,’ 1869, p. 335.
[111] ‘Gardener’s Chronicle,’ 1869, p. 1018, with remarks by Dr. Masters on the adhesion of the united wedges. See also ibid., 1870, pp. 1277, 1283.
[112] ‘Gardener’s Chronicle,’ 1871, p. 837.
[113] ‘Gardener’s Chronicle,’ 1870, p. 1506.
[114] ‘Sitzungsberichte der Gesellschaft naturforschender Freunde zu Berlin,’ Oct. 17th, 1871.
[115] Ibid., Nov. 17th, 1874. See also excellent remarks by Herr Magnus.
[116] ‘Bastarderzeugung,’ s. 549. It is, however, doubtful whether these plants should be ranked as species or varieties.
[117] Gärtner, ibid., s. 550.