[26] Dioscorides, "Materia Medica," iv. 191.
[27] Tragus, "Historia Stirpium" (ed. 1552).
[28] Tournefort, "Histoire des Plantes" (ed. 1727), i. 74, 75.
[29] Turnsole, a colouring substance made of coarse linen rags, which, after being cleaned and bleached, are dipped into a mixture of ammoniacal matter, and the juice of the Crozophora tinctoria.
[30] Leaves are said to be linear, when the veins do not spread out, but run from the base to the extreme point.
[31] A stigma is the continuation of the cellular tissue of the style, and has sometimes projecting cellules of hairs.
[32] A whorl, or ring, of bracts (floral leaves) is so called.
[33] Diodorus, i. 43.
[34] Pliny, "Historia Naturalis," xxiv. 188.
[35] Dioscorides, iv. 30.