[144] Loudon’s ‘Arboretum et Fruticetum,’ vol. ii. p. 1217.
[145] ‘Gardener’s Chronicle,’ 1866, p. 1096.
[146] ‘Géograph. Bot.,’ p. 1096.
[147] ‘Gardener’s Chronicle,’ 1842, p. 36.
[148] Loudon’s ‘Arboretum et Fruticetum,’ vol. iii. p. 1731.
[149] Ibid., vol. iv. p. 2489.
[150] Godron (‘De l’Espèce’ tom. ii. p. 91) describes four varieties of Robinia remarkable from their manner of growth.
[151] ‘Journal of a Horticultural Tour, by Caledonian Hort. Soc.,’ 1823, p. 107. Alph. De Candolle, ‘Géograph. Bot.,’ p. 1083. Verlot, ‘Sur La Production des Variétés,’ 1865; p. 55 for the Barberry.
[152] Loudon’s ‘Arboretum et Fruticetum,’ vol. ii. p. 508.
[153] Verlot ‘Des Variétés,’ 1865, p. 92.