RUTALS. 114 ANACARDS, 
Pisvacia. Linneeus. : 
Flowers apetalous, imperfectly diccious. Fruit a dry drupe, with a bony 
stone. 
1. P. atlantica Desfontaines.—(BarBary Masticn.) Fig. 168. a 
Leaves unequally pinnated, decidu- 
SAAS ous; leaflets about 9, lanceolate, 
. SW ) rather tapering to the base; the 
LES = OH, petiole winged between the ter- 
minal pairs. 
Sah) DAA 
2. P. Lentiscus Linnseus.—(The 
Mar Mastic TREE.) 4 
<h'¥Z Leaves abruptly pinnated, ever- 
SS wit green ; leaflets 8, lanceolate; 
petiole winged. 
Habitat. South of Europe, North of 
"Africa, ete conta 
uality. Resin fragran gent, 
Bree " Oecaascnialty in gleet, leucorrhea, 
&e,; chiefly by dentists, and as 
varnish. 
3. P. Terebinthus Linneus.—(Turrentine Prstacta.) : 
Leaves unequally pinnate, deciduous ; leaflets about 7, ovate-lanceolate, 
rounded at the base, acute, mucronate. : 
Habitat. South of Europe, North of Africa, Levant. 
Quality. Like that of other turpentines, 
Uses. Yields Scio or Cyprus turpentine. 
4. P. vera Linnzeus.—(Pistacta, Nut.) od 
Leaves unequally pinnate, deciduous; leaflets ovate, somewhat narrowed to 
the base, rather mucronate, in fives, threes, or single. 
Habitat. Syria. 
Quality. Fruit oily. 
Uses. At dessert : and for astringent emulsions. 
Ruvs. Linneeus. i 
Flowers 4/. Petals from beneath a large orbicular disk. Ovary sessile; 
styles 3. _Drupe nearly dry, with a bony stone. 
1. R. Toxicodendron Linnzus.—(Potson Oak.) ve 
Leaves trifoliolate ; leaflets ovate, oblong, thin, cut and angular, pubescent; 
sometimes entire. : 
Habitat. United States, 
Quality. Excessively acrid, and narcotic : even its gaseous emanations; a dangerous - 
Uses. Paralysis, chronic rheumatism, amaurosis. 
2. R. Metopium Linneus.—(Hoa Gum. 
Leaves unequally pinnate, is 2 pairs, fs smooth ; leaflets with a short 
stalk, ovate, entire, 
Habitat. West Indies, 
uy. Gum astringent, vulnerary, diuretic. see 
Uses. Fresh vou tae colic, gonorrhcea ; as a plaster in gout and rheumatism. _ 
Fig. 168.—Pistacia atlantica in fruit. SS 
