1994
A. de Saint-Hilaire, Ann. Sc. Nat., xvi. p. 143.
1995
Lindley, Journ. of the Hortic. Soc., i. p. 114.
1996
I quote these facts from Wittmack, Ueber Antiken Maïs aus Nord und Sud Amerika, p. 87, in Berlin Anthropol. Ges., Nov. 10, 1879.
1997
Rochebrune, Recherches Ethnographiques sur les Sépultures Péruviennes d’Ancon, from an extract by Wittmack in Uhlworm, Bot. Central-Blatt., 1880, p. 1633, where it may be seen that the burial-ground was used before and after the discovery of America.
1998
Sagot, Cult. des Céréales de la Guyane Franç. (Journ. de la Soc. Centr. d’Hortic. de France, 1872, p. 94).
1999
De Naidaillac, in his work entitled Les Premiers Hommes et lesTemps Préhistoriques, gives briefly the sum of our knowledge of these migrations of the ancient peoples of America in general. See especially vol. ii. chap. 9.
2000
De Naidaillac, ii. p. 69, who quotes Bancroft, The Native Races of the Pacific States.
2001
Willkomm and Lange., Prodr. Fl. Hisp., iii. p. 872.
2002
Boissier, Fl. Orient.; Tchihatcheff, Asie Mineure; Ledebour, Fl. Ross., and others.
2003
Heer, Pflanzen der Pfahlbauten, p. 32, figs. 65, 66.
2004
De Lanessan, in his translation from Flückiger and Hanbury, Histoire des Drogues d’Origine Végétale, i. p. 129.
2005
Dioscorides, Hist. Plant., lib. iv. c. 65.
2006
Pliny, Hist. Plant., lib. xx. c. 18.
2007
Unger, Die Pflanze als Errerungs und Betaübungsmittel, p. 47; Die Pflanzen des Alten Ægyptens, i. p. 50.
2008
Ebn Baithar, German trans., i. p. 64.
2009
Ad. Pictet, Origines Indo-Européennes, edit. 3, vol. i. p. 366.
2010
Ainslie, Mat. Med. Indica, i. p. 326.
2011
Nemnich, Polygl. Lexicon, p. 848.
2012
Martin, in Bull. Soc. d’Acclimatation, 1872, p. 200.
2013
Sir J. Hooker, Flora of Brit. Ind., i. p. 117; Bretschneider, Study and Value, etc., 47.
2014
Ebn Baithar, i. p. 64.
2015
Flückiger and Hanbury, Pharmacographia, p. 40.
2016
Barbosa’s work was published in 1516.
2017
Hughes, Trade Report, quoted by Flückiger and Hanbury.
2018
Sloane, Jamaica, ii. p. 53.