KUTACE.E. (RUE FAMILY.) G9 



i 



foliolate ; leaflets ovate-lanceolate, crenate-serrulate, unequal-sided, shiniug 



above; pauicles terminal; stamens 5; carpels 3, nearly sessile. Var. FRU- 

 TicostiM, Gray. Shrubby ; leaves shorter, ovate or oblong, more strongly 

 crenate ; ovaries always two. Dry soil, Florida to North Carolina, and 

 westward. June. A small tree, with the pungent bark armed with warty 

 prickles. 



2. X. Caribseum, Lam. (SATIN-WOOD.) Branches and petioles un- 

 armed ; leaflets 5-7, ovate lanceolate on the fertile plant, and elliptical, obtuse, 

 or emarginate on the sterile, slightly creuulate, and like the cymose panicle 

 stellate pubescent ; stamens 4-5; carpels 1-2, obovate, stipitate; seed soli- 

 tary, obovate, black and shining. South Florida. Leaves l'-2' long. 

 Cyme sessile, divided into three primary branches. Flowers minute. 



3. X. Pterota, HBK. Smooth ; branches zigzag, armed with short 

 curved prickles ; petiole winged, jointed ; leaflets 7-9, small, obovate, coria- 

 ceous, creuate 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. 

 Leaflets V - f ' long, those on the fertile plant narrower and smaller. Carpels 

 small, dotted. 



2. PTELEA, L. HOP-TREE. 



Flowers polygamous. Sepals and petals 4-5, imbricated in the hud, de- 

 ciduous. 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 greenish flowers in a terminal cyme. 



1. P. trifoliata, L. Pubescent or tomentose ; leaves long-petioled ; 

 leaflets oval or oblong, mostly acute, obscurely crenulate, paler beneath, the 

 lateral ones unequal-sided ; filaments 4-5, densely villous below the middle, 

 longer than the stvle in the sterile flowers, shorter in fertile ones. Kocky 

 banks. May -June. Shrub 4-8 high. Leaflets 2' -4' long. Fruit 1' 

 wide. 



2. P. Baldwinii, Torr. & Gray, Leaves very small, glabrous ; leaflets 

 sessile, oval, obtuse, the terminal one cuneiform at the base ; flowers tetran- 

 drous ; style none. East Florida. Shrub 1 high, with numerous short and 

 scraggy branches. Leaflets 1' long. Flowers smaller than in No. 1. 



3. AMYRIS, L. TORCH-WOOD. 



Flowers perfect. Calyx 4-parted. Petals 4, narrowed at the base, imbri- 

 cated in the bud. Stamens 8, shorter than the petals, hypogynous. Ovary 

 1 celled. Stigma capitate. Drupe globose, 1 -seeded. Cotyledons plano- 

 convex. Trees or shrubs. Leaves 3-7-foliolate, opposite, with glandular 

 pellucid dots. Flowers panicled, white. 



1. A. maritima, Jacq. Smooth; leaves petioled, trifoliolate ; leaflets 

 ovate, obtuse, entire, on slender stalks; branches of the panicle opposite; 

 drupe, like the flowers, dotted. South Florida. A shrub or small tree. 

 Leaflets 1'- If long, shining a' ove, Flowers yellowish white, 



