[570] Signifying the “unguent acorn,” or “nut.” There is little doubt that the behen or ben nut of the Arabians is meant, of which there are several sorts. It is used by the Hindoos for calico printing and pharmacy, and was formerly employed in Europe in the arts, and for medical purposes. It is no longer used as a perfume. The “oil of ben” used in commerce is extracted from the fruit of the Moringa oleifera of naturalists. It is inodorous; for which reason, Fée is of opinion that the name signifies “the oily nut,” and quotes Dioscorides, who says, B. iv., that an oil is extracted from this balanus, which is used as an ingredient in unguents, in place of other oils. Fée also says that at the present day it is used by perfumers, to fix or arrest the evanescent odours of such flowers as the jasmine and the lily.
[571] This Æthiopian variety is quite unknown, and is, as Fée remarks, most probably of a different species from the genuine myrobalanus.
[572] See B. vi. c. 32.
[573] “Curing thirst.” Dioscorides, B. i. c. 148, says that it was so called from, being full of juice, which quenched thirst like water.
[574] “Palm-nut.” Fée thinks it not improbable that one of the date-palms is meant, if we may judge from the name. He suggests that possibly the Elais or avoira of Guinea, the Elais Guineensis, which is found as far as Upper Egypt, and which produces a fine oil known as palm-oil, is meant, or possibly the Douma Thebaica, a palm-tree frequently met with in Egypt. On fermentation, a vinous drink is extracted from the last, which is capable of producing intoxication.
[575] Fée remarks, that this must not be confounded with the Calamus aromaticus of the moderns, of which Pliny speaks in B. xxv. c. 100, with sufficient accuracy to enable us to identify it with the Acorus calamus of Linnæus. It is not ascertained by naturalists what plant is meant by Pliny in the present instance, though Fée is of opinion that a gramineous plant of the genus Andropogon is meant. M. Guibourt has suggested that the Indian Gentiana chirayta is the plant. From what Pliny says in B. xiii. c. 21, it appears that this calamus grew in Syria, which is also the native country of the Andropogon schœnanthus.
[576] See B. xxiv. c. 14. The gum resin ammoniacum is still imported into Europe from Africa and the East, in the form of drops or cakes. It is a mildly stimulating expectorant, and is said to be the produce of the Dorema ammoniacum. There are still two sorts in commerce: the first in large masses of a yellow, dirty colour, mingled with heterogeneous substances, and of a plastic consistency. This is the phyrama of Pliny, or mixed ammoniac. The other is in tears, of irregular form and a whitish colour, brittle and vitreous when broken. This is the thrauston, or “friable” ammoniac of Pliny. Jackson says, that the plant which produces it is common in Morocco, and is called feskouk, resembling a large stalk of fennel. The ammoniac of Morocco is not, however, imported into this country, being too much impregnated with sand, in consequence of not being gathered till it falls to the ground.
[577] Solinus tells us, that the tree itself is called Metops.
[578] It is clear that, under this name, certain lichens of a hairy or filamentary nature are meant. They adhere, Dioscorides tells us, to the cedar, the white poplar, and the oak. The white ones belong, probably, to the Usnea florida of Linnæus, the red ones to the Usnea barbata, and the black ones to the Alectoria jubata, an almost inodorous lichen.
[579] Probably the Roccella tinctoria of Linnæus, a lichen most commonly found upon rocks.