54 BOOK OF THE SCENTED GARDEN 
and even so late as 1860 there were only forty manu- 
facturing perfumers in all England, while at the same 
date there were eighty in Paris alone. There does not 
appear ever to have been a perfumers’ company in 
London. No such trade as that of a perfumer was 
known in Scotland until after the year 1762. 
Acacia.—Shrubs or small trees mostly from Australia 
and North Africa. 4. 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 immemorial 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, etc. (Liliaceae). As showing that taste 
and smell do not always agree, we may instance that 
the taste or flavour of Onions, etc., 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 in Spain often placed in 
the teapot to add their aroma to the tea. 
Andropogon citratus.—Lemon-grass. This and several 
other species are grown or collected in India, Ceylon, 
etc., 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 
