52 KUTACEAE. 



1. BYESONIMA L. C. Eich. Shrubs or trees. Flowers iu terminal 

 racemes or panicles. Petals white, reddish, or purplish, reflexed. Stigmas 

 acute. Carpels permanently united. Cotyledons circinate-coiled. 



1. B. lucida (Sw.) DC. Evergreen small tree, or shrub, mostly 3-18 dm. tall: 

 leaf -blades spatulate to obovate-spatulate, 2-4 cm. long, lustrous above: 

 racemes 2-4 cm. long: petals white, turning yellow or rose, 7 mm. long, the 

 blades renif orm : drupes 4-6 mm. in diameter. — All year. 



The Locust-berry grows In hammocks on the Everglade Keys and on the 

 Florida Keys. The wood is close-grained, heavy, and hard. (W. I.) 



Family 3. RUTACEAE. Rub Family. 



Shrubs or trees or rarely herbs, often prickle amied, with glandular- 

 punctate tissues. Leaves alternate or opposite: blades simple or pin- 

 nately compound, sometimes 1-foliolate. Flowers perfect or polygamous, 

 mostly regular. Calyx of 3-5, or rarely more, sepals, or wanting. Corolla 

 of 3-5, or rarely more, petals. Androecium of as many stamens as there 

 are sepals or petals or rarely thrice as many. Gynoecium of 2-5 distinct 

 or united carpels. Fruit capsular, samaroid, drupaceous or baccate. 



Fruit dry. follicular or samaroid. 



Fruit dehiscent, a follicle. 1. Zanthoxylum. 



Fruit indehiscent, a samara. 2. Ptelea. 



Fruit fleshy, drupaceous or baccate. 



Fruit a drupe : ovary 1-celled. 3. Amyeis. 



Fruit a berry : ovary 2- or 9-celled. 



Stamens 8 or 10 : carpels 1-ovuled. 4. Glycosmis. 



Stamens 20 or more : carpels several-ovuled. 5. Citrus. 



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

 sometimes 1-foliolate. Flowers polygamous, iu axillary spikes or term.inal 

 corymb-like or cyme-like panicles. Sepals present or wanting. Petals 4 or 5, 

 mostly erect. Mature carpels solitary, or 2-5 together. — Spr. & sum., or all 

 year. 



Flowers in small axillary spikes : sepals, petals and stamens 4. 1. Z. Fariara. 



Flowers in large terminal cyme-like or corymb-like panicles : 

 sepals, petals and stamens 3 or 5. 

 Sepals, and petals, 5 : leaflets herbaceous. 



Sepals triangular or deltoid, partially united, persistent. 2. Z. flarum. 

 Sepals ovate or ovate-lanceolate, distinct, deciduous. 3. Z. Clava-Hcrculis. 



Sepals, and petals, 3 : leaflets leathery. 4. Z. coriaceutn. 



1. Z. Fagara (L.) Sarg. Tree sometimes 10 m. tall, the trunk slender, often 

 inclining, or shrub: leaves 2. .5-11 cm. long, the rachis ringed : blades of the 

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

 mature carpels subglobose, 3.5-4 mm. long. 



The Wild-lime grows in hammocks, on the southern two-thirds of the eastern 

 coast of peninsular Florida and on the lower half of the western coast. Also in the 

 hammocks of the Everglade Keys and the Florida Keys. The brown and red-tinged 

 heart-wood is close-grained, heavy, and hard. (TF. J.) 



2. Z. flavum Vahl. Tree sometimes 12 m. tall or shrub, unarmed, 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. 



The Y'ELLOw-wooD grows in hammocks on the lower Florida Keys. The yellow- 

 er light-orange heart-wood is close-grained, very heavy, and hard but brittle. Also 

 known as Satinwood. (W. I.) 



3. Z. Clava-Herculis L. Tree sometimes 17 m. tall or shrub, the prickles 

 raised on corky bases: leaves 1-3 dm. long; blades of the lateral leaflets ovate, 



