[1919] According to Unger, Pflanz, d. Alt. Ægypt., p. 34.
[1920] Heer, Pflanzen d. Pfahlbaut., p. 5, fig. 7; p. 17, figs. 28, 29; Perrin, Études Préhistoriques sur la Savoie, p. 22.
[1921] Heldreich, Nutzpfl. Griech.
[1922] Roxburgh, Fl. Ind., edit. 1832, vol. i. p. 302; Rumphius, Amboin., v. p. 202, t. 75.
[1923] Roxburgh, ibid.
[1924] Ainslie, Mat. Med. Ind., i. p. 226.
[1925] “Obeurrit in Baleya,” etc. (Rumphius, v. p. 202).
[1926] “Habitat in Indiis” (Linnæus, Species, i. p. 83).
[1927] Aitchison, Catal. of Punjab Pl., p. 162.
[1928] Bentham, Flora Austral., vii. p. 493.