[869] Hooker, Fl. Nigr., p. 205.
[870] Nov. Act. Nat. Cur., xix. suppl. 1.
[871] Richard, Plant. Vasc. de Cuba; Grisebach, Fl. Brit. W. Ind. Is.; Hemsley, Biologia Centr. Am., p. 118; Kunth, in Humboldt and Bonpland, Nova Gen., v. p. 57; Triana and Planchon, Prodr. Fl. Novo-Granat., p. 28.
[872] Gay, Flora Chil., i. p. 66.
[873] Molina, French trans.
[874] Gallesio, Traité du Citrus, in 8vo, Paris, 1811; Risso and Poiteau, Histoire Naturelle des Orangers, 1818, in folio, 109 plates.
[875] Hooker, Fl. of Brit. Ind., i. p. 515.
[876] Brandis, Forest Flora, p. 50.
[877] For a work of this nature, the first step would be to publish good figures of wild species, showing particularly the fruit, which is not seen in herbaria. It would then be seen which forms represented in the plates of Risso, Duhamel, and others, are nearest to the wild types.
[878] Bretschneider, On the Study and Value of Chinese Botanical Works, p. 55.