Note 151 — Chapter X · PLANTS continued—FRUITS—ORNAMENTAL TREES—FLOWERS.
Reading edition
‘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.