[275] 'Comptes Rendus,' vol. xviii, March 25th, 1864, and 'Ann. Sc. Nat.,' 3 ser., vol. ii, p. 32.

[276] 'Mém. Acad. Sc. Toulous.,' ser. 5, vol. iii.

[277] 'Bildungsabweich. Pflanz. Famil.,' p. 89, tab. xi.

[278] 'Bull. Soc. Bot. Fr.,' 1865, p. 411.

[279] Translated in 'Ann. Sc. Nat.,' 4th series, t. xiv, p. 24.

[280] The calyx is not unfrequently excepted.

[281] 'Bull. Bot.,' t. i, p. 6.

[282] Lindley, 'Theor. Horticult.,' ed. 2, p. 84, f. 17.

[283] Gris, 'Bull. Soc. Bot. Fr.,' 1858, vol. v, p. 261, and 'Ann. Sc. Nat.,' ser. 4, vol. ix, p. 80. Planchon, 'Flore des Serres,' vol. i, 1856, p. 129.

[284] 'Flora,' 1856, p. 711.