KUTACEAE. 71 



1. ZANTHOXYLUM [Catesby] L. Shrubs or trees. Leaf-blades pin- 

 nate, sometimes 1-foliolate. Flowers polygamous, in short axillary spikes, or 

 in terminal corymb-like panicles or cymes. Sepals present or wanting. Petals 

 3-5, mostly erect. Mature carpels solitary, or 2-5 together. [Fagara L.] 



Flowers in short, axillary spikes : sepals, and petals, 4 : seeds usually less than 3 mm. 



wide. 1. Z. Fagara. 



Flowers in terminal corymb-like panicles or cymes : sepals, 

 and petals, 3 or 5 : seeds over 3 mm. wide. 

 Sepals, and petals, 3 : leaf-blades equally pinnate. 2. Z. coriaceum. 



Sepals, and petals, 5: leaf -blades unequally pinnate. 3. Z.JIuvum. 



f. ;."' 1. Z. Fagara (L.) Sarg. Shrub, or tree sometimes 10 m. tall, the trunk 

 slender, often reclining: leaves 2.5-11 cm. long, the rachis winged; blades of 

 the lateral leaflets mostly obovate to oval, 1-2.5 cm. long, shallowly crenate: 

 petals 1.5-2 mm. long, or larger: mature carpels subglobose, 3.5-4 mm. long: 

 seeds 2-2.5 mm. wide. — Hammocks, L. keys. — [E. K.] — {Bali., Cuba, Ant.) — 

 Wild-lime. 



;, ' " 2. Z. coriaceum A. Eich. Shrub, or tree becoming 7 m. tall: leaves 6-15 cm. 

 loug; blades of the leaflets leathery, rigid, obovate to cuneate or oblong with 

 acuminate base, 2-6 cm. long: petals 2-3 mm. long: mature carpels 5-6 mm. 

 long: seeds about 3.5 mm. wide. — Hammocks, U. S. keys. — [E. K.] — {Bah., 

 Cuba, Ant.) — Hercules '-club. 



7" 'if' ^3. Z. flavum Vahl. Shrub or tree sometimes 12 m. tall, the twigs stellate- 

 canescent: leaves 9-25 cm. long, the rachis terete; blades of the lateral leaflets 

 mostly oblong or ovate, 3.5-10 cm. long: mature carpels obovoid, 5-9 mm. long. 

 — Hammocks, U. keys, L. keys. — {Ber., Bah., Cuba, Ant.) — Yellow-wood. 



2. AMYErlS [P. Br.] L. Shrubs or trees. Leaf-blades pinnate, often 

 1-foliolate, the petiole wingless. Flowers perfect or polygamous, paniculate. 

 Sepals 4 or 5. Petals 4 or 5, very small. Ovary 1-celled. Drupe with a single 

 seed. 



i, '^\ 1. A. elemifera L. Shrub, or tree becoming 17 m. tall : leaflets 3 or 5 ; blades 

 ovate to rhombic-ovate, 2-8 cm. long: petals 2.5-3.5 mm. long: drupes 4-8 mm. 

 long, black beneath the bloom. — Hammocks, U. keys, L. keys. — [E. K.] — 

 {Bah., Cuba, Ant.) — Torchwood. 



" - 3, GLYCOSMIS Correa. Shrubs or trees. Leaf -blades 1-several-foliolate, 

 leaflets mostly entire. Flowers perfect, relatively small. Sepals nearly dis- 

 tinct. Petals 5, elongate. Ovary 2-5-celled: styles very short. Ovules solitary 

 in each cavity. Berry globular, the pulp very thin. 



> ^ -vl. G. pentaphylla (Eetz.) DC. Shrub 1-4 m. tall, or small tree: leaves 1-5- 

 foliolate ; leaflets elliptic to oblong, or broadest above the middle, 8-16 cm. 

 long, glabrous: sepals orbicular to oval, 1-2 mm. long: petals oblong sometimes 

 broadly so, 3-4 mm. long: filaments clavate: berries 7-10 mm. in diameter, 

 white or pink. — Hammocks, Key West. Nat. of the E. Indies. — {Cuba, Ant.) 



4. CITRUS L. Shrubs or trees. Leaf-blades 1-foliolate, the petiole often 



winged. Flowers perfect, axillary. Sepals united. Petals 5, or 4-8, mostly 



wax-like. Ovary several-celled. Berry several-seeded. The following species, 



apparently natives of Asia, are widely cultivated, and naturalized. 



Berry of a globose or spheroidal type, not mamillate at the apex. 



Wings of the petioles usually broad : pulp of the berry bitter and sour. 



1. C. vulgaris. 

 Wings of the petioles usually narrow : pulp of the berry sweet 



or sour. 2. 0. Aiirantium. 



