56 MIMOSACEAE. 



Stamens as many as the petals or the corolla-lobes or twice as 

 manv. 

 Anthers without glandular appendages at the top. 



Shrubs or trees : seeds transverse in the pod. 5. Leucaena. 



Herbs : seeds lengthwise or oblique in the i)o(l. 6. Acuax. 



Anthers, at least in the bud, topped by glandular appendages. 7. Neptuxia. 



1. PITHECOLOBIUM Mart. Shrubs or trees. Leaves 2-pinnate: leaflets 

 few, often 4. Spikes capitate. Calyx-lobes minute. Corolla prominently 

 lobed. Pods narrow, often pulpy within. Seeds with colored arils. 



Ovary glabrous, shorter than the stipe : petioles larger than the petiolules. 



1. P. Unguis-CuH. 

 Ovarv pubescent, larger than the stipe : petioles shorter than 



the petiolules. 2. P. guadeJupcnsis. 



1. P. Unguis-Cati (L.) Benth. Unarmed shrub or small tree: blades of the 

 leaflets thinnish, broadly obovate, oval, or suborbicular, 1-4.5 cm. long: calyx 

 1.5-2 mm. long; lobes wider than long, blunt: corolla 3.-5-4.5 mm. long: pods 

 long-stipitate.- — Coastal sand-dunes and hammocks, U. keys^ L. keys. — [E. K.] 

 — {Bah., Cuba, Ant.) — Cat's-claw. 



2. P. guadelupensis Chapm. Armed shrub or small spreading tree: blades of 

 the leaflets leathery, oblong to cuneate, oval or suborbicular, 3-7 cm. long: 

 calyx 2.5-3 mm. long; lobes longer than wide, acute: corolla 5-6 mm. long: 

 pods short stipitate. — Hammocks, pinelands and coastal sand-dunes, U. S. keys, 

 U. keys, L. keys, L. S. keys.— [E. K.]—(Bah., Cuba, ^/U.)— Black-be.\d. 



2. AIjBIZZIA Durazz. Shrubs or trees. Leaves 2-pinnate: leaflets 

 numerous. Spikes capitate. Calyx-lobes relatively short and small. Corolla 

 twice as long as the calyx. Pod linear, flat. 



1. A. Lebbek (Willd.) Benth. Tall tree: leaves with 4-8 pinnae; leaflets 

 10-22, the blades oblong to oblong-obovate, 2-5.5 cm. long, acute: calyx about 

 4 mm. long: corolla 9-11 mm. long; larger lobes lanceolate: pods linear, 15-40 

 cm. long: seeds oval, 6-7 mm. wide. — Hammocks and about gardens, L. keys. 

 Nat. of Africa. — {Bali., Cuba, Ant.) — Woman 's-tonguk tree. 



3. LYSILOMA Benth. Shrubs or trees. Leaves 2-pinnate: leaflets 

 numerous. Spikes capitate. Calyx-lobes relatively long. Corolla slightly 

 longer than the calyx. Pod oblong to linear. 



1. L. bahamensis Benth. Tree becoming 20 m. tall, with spreading branches: 

 leaves with 4-8 pinnae; leaflets 20-40; blades oblong to oblong-lanceolate, 

 8-11 mm. long: calyx about 2 mm. long: corolla 2.5-3 mm. long; lobes ovate: 

 pods oblong, 8-15 cm. long, long-stipitate. — Hammocks, U. keys, L. keys. — 

 [E. K.] — {Bah., Cuba.) — Wild-tamarind. 



4. VACHELLLA. Wight & Arn. Shrubs or small trees. Leaves 2- 

 pinnate: leaflets numerous, small. Spikes globose. Calyx-lobes minute, rela- 

 tively short. Corolla about twice as long as the calyx ; lobes short. Filaments 

 distinct. Pod very turgid. 



1. V. Famesiana (L.) Wight & Arn. Shrub with diffuse branches, or small 

 tree: leaf-pinnae 8-16; leaflets 20-50, the blades linear-oblong, 2-4 mm. long: 

 calyx about 1.5 mm. long: corolla 2-2.5 mm. long: pods 3-7.5 cm. long. — 

 Pinelands and hammocks, L. keys.— [E. K.] — {Bah., Cuba, Ant.) — Yellow- 

 opoponax. 



5. LEUCAENA Benth. Shrubs or trees. Leaves mostly 2-pinnate: leaf- 

 lets often small and numerous. Spikelets capitate. Calyx-lobes minute. Petals 



