[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.