154 
JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 
Acacia.—Shrubs or small trees mostly from Australia and North 
Africa. A. Farnesiana is largely cultivated at Grasse for its 
flowers. 
Achillea millefolium (Yarrow).—Aromatic herb, both foliage and 
roots being odorous. 
Acorus Calamus.—Sweet flag. Largely grown from time im¬ 
memorial for its rhizomes in the East. It is cultivated in fen 
districts in England, on the Continent, and especially on the 
shores of the Black Sea. 
Ajoman (Ptychotis ajoman). 
Alliaceous odours.—Characteristic of Onions, Chives, Leeks, 
Garlic, &c. (Liliaceas). As showing that taste and smell do not 
always agree, we may instance that the taste or flavour of 
Onions, &c., is enjoyed by many who detest the smell of 
them. (Shakespeare, “ Midsummer Night’s Dream,” iv. 2.) 
Allspice (Pimento officinalis). 
Aloysia citriodora.—Lemon-scented Verbena, a well-known 
shrub from Chili, deservedly much grown in gardens, and 
hardy in warm and sheltered corners near walls and plant- 
houses. Its leaves retain their odour when dried, and are 
often placed in the teapot in Spain to add their aroma to the 
tea. 
Andropogon citratus.—Lemon-grass. This and several other 
species are grown or collected in India, Ceylon, &c., and the 
essential oil they produce is known as “Indian Geranium ’’ 
oil. It is grown as a stove plant, and its leaves when fresh 
are used for flavouring confectionery. 
Angelica archangelica (A. officinalis).—A tall herbaceous plant 
(Umbelliferge) the fleshy stems of which are very aromatic, 
and are candied or preserved in syrup and used in confections. 
Oil of Angelica is used in Chartreuse and other liqueurs. 
Angostura (Galipea cusparia).—Used as a tonic stimulant. 
Anise (Pimpinella anisatum). 
Anthemis nobilis (Chamomile).—A dwarf evergreen composite 
plant, grown for its single, or double, Daisy-like flowers, which 
are used medicinally. 
Anthoxanthum odoratum (Sweet Vernal Grass).—This grass 
belongs to the Coumarin series of perfumes, and gives its 
peculiar fragrance to the hay crop. The essential oil is used 
in perfuming cheap Tobaccos, &c. 
