176 



I'AUAi'KAK. 



long; pinnae 6-12 pairs, opposite, very nearly sessile, narrowly lanceolate, 5-10 

 em. long; leaflets 12-36 pairs, opposite, coriaceous, linear-oblong, 5-10 mm. 

 long, revolute-margined, glabrous and shining above, obtuse at the apex, trun- 

 cate at the sessile base; panicles terminal, many-flowered, often 3 dm. long; 

 pedicels slender, 12-20 mm. long; calyx subglobose in bud, 5-6 mm. long, its 

 obovate segments imbricated, nearly equal; petals obovate, 7-10 mm. long; 

 stamens shorter than the petals; pod 4-5 cm. long, 12-15 mm. wide at the 

 middle. 



Scrub-lands and coppices, Andros, Great Exuma, Long Island : Cuba. Hokse- 



BUSH. 



Family 5. FABACEAE Rchb. 



Pea Family. 



Herbs, shrubs, vines or trees, with alternate mostly compound stipu- 

 late leaves, and irregular (papilionaceous) perfect or sometimes polygamo- 

 dioecious flowers, mainly in spikes, heads, racemes or panicles. Calyx 4-5- 

 toothed, or 4-5-cleft, sometimes 2-lipped. Petals more or less united, or 

 separate, perigynous or hypogynous, usually consisting of a broad upper 

 one (standard, banner), two lateral ones (wings), and two front ones 

 more or less united (forming the keel) ; the standard enclosing the wings 

 in the bud. Stamens monadelphous, diadelphous, or sometimes separate, 

 10 in most of the genera, sometimes 9, rarely 5. Pistil simple, superior; 

 ovary mainly 1-celled, sometimes 2-celled by the intrusion of the sutures, 

 or several-celled by cross-partitions; style simple; ovules 1-many, anatro- 

 pous or amphitropous. Fruit a legume, 1-many-seeded, dehiscent into 2 

 valves, or indehiscent, in one tribe a loment. Seeds mostly without endo- 

 sperm; cotyledons thick. About 325 genera and over 5000 species, most 

 abundant in temperate and warm regions. 



Filaments all separate. 



Petal only 1 ; pod flat, short, winged. 

 Corolla papilionaceous : pod turgid, elongated. 

 Filaments monadelphous or diadelphous. 

 Herbs, shrubs or trees. 

 Fruit 2-valved. 



Leaves mostly trifoliolate. 

 Leaflets entire. 

 Leaflets serrulate. 

 Leaves pinnate. 



Leaves unequally pinnate. 

 Pods 4-angled or turgid. 

 Pods flat. 

 Leaves equally pinnate. 



Standard broad,- longer than the keel-petals ; 



calyx-lobes acute or acuminate. 

 Standard narrow, shorter than the keel-petals ; 

 calyx-lobes low and broad. 

 Fruit a loment. 



Stamens all united into a tube. 

 Vexillar stamen free from the others. 

 Joints of the loment flat. 

 Joints of the loment thick, fleshy. 

 Fruit indehiscent. 



Leaves 1-foliolate ; pod suborbicular ; vine-like shrubs. 

 Leaves pinnate ; pod elongated, 4-winged ; tree. 

 Tines, our species herbaceous (Phaseolus lathyroides an erect 

 herb; Cajan erect and half-shrubby). 

 Keel of the corolla not curved nor coiled (somewhat bent 

 in Canavali) . 

 Leaves equally pinnate, terminated by a bristle. 

 Leaves trifoliolate, rarely unifoliolate. 

 Style bearded along the inner side. 

 Style glabrous or sparingly pubescent below 

 (somewhat bearded in Dolichos). 



1. Atelcia. 



2. Sophora. 



3. Crotalaria. 



4. Trifolium. 



5. Indigofera. 



6. Cracca. 



7. Sesban. 



8. Agati. 



9. Stylosanthes. 



10. Meibomia. 



11. Alysicarpus. 



12. Ecastophyllum. 



13. Ichthyomethia. 



14. Abrus. 



15. Clitoria. 



