RUTACEÆ. 455 
several drugs, furnishes the Essence of Lemon by pressure or distil- 
lation. Its acid pulp is used in making a refreshing drink, and as 
a topical, exciting, antiputrid, haemostatic drug ; and from it also are 
extracted the citric acid used in commerce and medicine, The 
number of varieties and forms of the preceding species, more or less 
commonly used in industry and domestic economy, is also con- 
siderable.’ 
The properties of Amyris? more nearly approach those of Burse- 
raceæ, to which this genus was long ascribed.* ‘They are fragrant 
and balsamic, and are said to yield some resinous products. 4. sy/- 
vatica,* of the Antilles, is an aromatic and stimulant plant. In the 
same regions, 4. balsamifera, whose fragrance is very balsamic, is 
considered venomous. The production of a kind of elemi is attri- 
buted to 4. Plumieri and Haminron names his 4. hevandra’ as 
furnishing the gum elemi of Nevis.’ The wood of several species of 
Amyris is useful. That of 4. sylvatica is the Bois de Citron (Lemon 
wood) of commerce. Its qualities are thus very similar to those of 
the beautiful wood of the Awranteæ, so much used in fine cabinet 
work, especially that of the Citron ; and also to that of the Lemon, 
which is close, scentless, pale yellow, and susceptible of being turned 
and polished like box, but is less beautiful than the latter; to that of 
the Seville Orange, tolerably hard, and of a greyish-white ; and to 
that of the true Orange, which is white, without veins, and sometimes 
coloured red towards the centre. The wood of Qwassia and Picrena 
employed as bitters, as we have seen, are susceptible of a fine 
polish, and may be used in cabinet work, although rather light. That 
of Quassia is a yellowish-white ; the other is yellower, more fibrous, 
and less satin-like. These two woods are not attacked by insects,” and 

1 See H. By., Awrant., 53. Besides which, 3 Many Burseracee, with useful products, 
we value especially for their fruits the varieties 
of Citron called C. de Salo, of Florence, or petit 
Poncire ; those of the Lemons called Lustrat, 
Poncire d'Espagne, Apple of Paradise, Sweet 
Lime, and Naples L.; those of Seville Orange 
called Turquoise, small China, China Orange 
with myrtle leaves, Pompoleon or Adam’s 
Apple, Seville O. with violet fruit, Mellarose, 
Bizarrerie; those of the Sweet Orange, called 
Portugal O., China O., Maltese, or Blood 
Orange, Pampelmousier (C. decumana Avcrt.), 
or Chadok, Tangerine, Mandarine, &c. In tro- 
pical Asia are eaten the small berries of several 
Murrayas, Luvungas, Limonias, especially those 
of Glycosmis and of L. trifoliata (fig. 454). 
? See H. Bn., in Dict. Encycl. Sc. Méd., iv. 49. 
were formerly called Amyris, especially Zcica, 
Protium, Bursera, Balsamodendrum. 
4 Jacg., Amer., 197. 
5 L., Spec., 496.—Sw., Obs., 149.—A. toxi- 
Sera W., Spec., ii. 336.— Lucinium PLUk, 
Almag., t. 201 (see TR., in Ann. Se. Naë., sér. 
5, xiv. 323). 
® DC., Prodr., ii. 81, n. 5. 
of A. sylvatica (note 4). 
7 Prodr. Fl. Ind. Oce., 34. 
8 Linpx., Fl. Med., 277. 
9 See Guis., op. cit., iii. 623. 
10 Preparations are made of them for killing 
flies, and we are assured they keep collections of 
herbs, &e., from attacks of insects, 
Probably a form 
