66 RUTACEX. (RUE FAMILY.) 
Orpvrer 34, RUTACELE. (Rur FauiLx.) 
Herbs, shrubs, or trees, with exstipulate simple or compound dotted 
leaves, and regular hypogynous perfect or unisexual flowers. — Sepals and 
petals 3-5. Stamens as many or twice as many as the sepals. Ovaries 
2—5, distinct or united, stipitate or sessile on a glandular disk. Styles 
mostly united. Fruit commonly composed of separate 1-celled 2-valved 
carpels. Embryo straight or curved, mostly in fleshy albumen. 
1. ZANTHOXYLUM, L. PRICKLY Asn. 
Flowers moncecious or dicecious. Sepals and petals 3-5. Stamens 3-5. 
Ovaries 2 — 5, sessile or stipitate, 2-ovuled. Carpels 2-valved, 1 —2-seeded. Seed 
smooth and shining. — Trees or shrubs, commonly armed with stipular prickles. 
Leaves unequally pinnate, the leaflets punctate with pellucid dots. Flowers 
small, greenish. 
1. Z. Carolinianum, Lam. ("ooa cite T was.) Smooth ; branches 
and commonly the petioles armed with long prickles; leaves alternate, 7 — 9- 
foliolate; leaflets ovate-lanceolate, crenate-serrulate, unequal-sided, shining above; 
panicles terminal; stamens 5; carpels 3, nearly sessile. — Var. FRUTICOSUM, 
Gray. Shrubby; leaves shorter, ovate or oblong, more strongly crenate ; ova- 
ries always two. — Dry soil near the coast, Florida to North Carolina, and west- 
ward. June.— A small tree, with the pungent bark armed with warty prickles. . 
2. Z. Floridanum, Nutt. (Sarin-Woop.) Branches and petioles un- 
armed; leaflets 5-7, ovate-lanceolate on the fertile plant, and elliptical, obtuse 
or emarginate on the sterile, slightly crenulate, and like the cymose panicle stel- 
late-pubescent; stamens 4-5; éarpels 1-2, obovate, stipitate ; seed solitary, 
obovate, black and shining. — South Florida. — Leaves 1'—-2! long. Cyme 
sessile, divided into three primary branches. Flowers minute. 
3. Z. Pterota, H. B. & K. Smooth; branches zigzag, armed with short 
curved prickles ; petiole winged, jointed ; leaflets 7-9, small, obovate, coria- 
ceous, crenate above the middle, sessile; flowers in axillary clusters, which are 
single or by pairs, as long as the first joint of the petiole ; stamens 4 ; ovaries 
2; carpels solitary, globose, pitted, distinctly stipitate. — South Florida. — Leaf- 
lets }/ — 3' long, those on the fertile plant narrower and smaller. Carpels small, 
dotted. — . 
2. PTELEA, L. Hor-rnrr. 
Flowers polygamous. Sepals and petals 4 — 5, imbricated in the bud, decidu- 
ous. Stamens 4-5. Ovary 2-celled, with two ovules in each cell. Style short. 
Stigma 2-lobed. Capsule 2-celled, 2-seeded, surrounded by a broad circular 
reticulated wing, — Unarmed shrubs, with trifoliolate leaves, and small URN 
iore ina terminal cyme. 
1. P. trifoliata, L. Pubescent ; irn laity RS 
_ nat erty s prs ilo 
