206 ANACARDIACE^. (CASHEW FAMILY.) 



as many or twice as many as petals. Ovule pendulous or as- 

 cending, with inferior mlcropyle, and usually dorsal raphe. 

 Fruit free, or surrounded at base by the calyx, usually an in- 

 dehiscent drupe. 



I.RHUS. Petals 5. Juice not terebinthine. 

 3. PISTACIA. Petals 0. Juice terebinthine. 



1. RHUIS, L. Sumach. Simmdq. 



Flowers hermaphrodite or dioecious-polygamous. Calyx 5-fid. 



Petals 5, spreading. Stamens 5, inserted under the orbicular disk. 



Short styles or stigmas 3. Drupe small, dry, flattened, with a 1-seeded 



bony pip — Shrubs or small trees, with simple, trefoil, or pinnate leaves. 



1. R. Cotiuiis, L. 5 Smoke Plant. 2 to 4, glabrous. Leaves 

 simjiJe, oiovate, entire, glaucous beneath. Panicles large, loose, com- 

 pound, terminal, .2 to .4 long, mcmy of the 2^ecUcels abortive, hairy ; 

 flowers hermaphrodite ; drupe obovate, veined, glabrous — Summer — 

 Cassius and xlmanus to Aiutab, Marash, and northward. 



2. R. Coriaria, L. 5 Sumach. Simmdq. 2 to 5, puberulent. 

 Leaves odd-pinnate, with 5-7 pairs of leaflets, villous beneath, oblong- 

 lenticular, coarsely serrate. Panicles ^6;iS(?, thy rsoid, terminal, .1 to. 2 

 long ; flowers polygamous ; drupe globular-reniform, covered icith acid, 

 glandular loool — Spring and early summer — Common. The fruit is 

 used to make an acid drink. The fruit, bark, and young leaves are used 

 in tanning and dyeing. 



3. R. oxyacaiitlioide§, Dum. q Branches twisted, thorny. 

 Leaves glabrous, ternate, the petiole a little shorter than the leaflets ; 

 the leaflets sessile, cuneate-obovate, obtusely few-lobed, dentate from 

 middle to apex. Racemes short, terminal ; flowers dioecious ; drupes 

 shining, glabrous, globular — Spring — Base of Lebanon near Sidon. 

 Wadi 'Arabah. Sinai. 



2. PISTACIA. Pistachio. Fistuq. 

 Flowers dioecious, apetalous ; the staminate with a 5-fid calyx, and 

 five, short stamens, with large anthers ; the jnstillate with a 3-4-fid calyx. 

 Styles short, trifid. Drupe 1-seeded, with a chartaceous epicarp, and 

 bony pip. Seed compressed — Trees or shrubs with a terebinthine gum, 

 usually pinnate leaves, and axillary racemes or panicles. 



1. P. vera, L. 5 Pistachio. Fistiiq. QarmuU-beledi. 3 to 6. 

 Leaves at first velvety, then glabrous except at margin, odd-pinnate 

 with 1-2 pairs of broad, leathery, .05 to .1 long, ovate, obtuse or mu- 

 cronulate leaflets, sometimes simple. Fruit . 02 long, oblong, apiculate, 

 seed edible — Spring — 'Ain-et-Tineh (near Damascus). Cultivated 

 everywhere. 



2. P. Terebintlius, L. § Terebinth. Butm. 4 to 8. Leaves de- 

 ciduous, odd -pinnate, of 4-6 pairs, with glah^ous, angled petiole, and 

 nearly glabrous, ovate-oblong to lanceolate, .03 to .06 long, mucro- 

 nate leaflets, oblique at base. Fruiting panicles straight, stiff, or zigzag ; 

 fruit .003 long, flattened orbicular, apiculate — Spring — Rocky places 

 and hillsides ; merges by imperceptible gradations into 



Var. PalsBStina, Engl. Odd leaflet small, or reduced to an awn 

 or mucro, or 0. Petiole crisp-puberulent — More common in our district 

 tlian type. (li. Paloestina, Boiss.) 



