82 MIMOSACEAE. 



pods short-stipitate. — Coastal sand-dunes and hammocks. — F. K. {Bah., Cuba, 

 Ant.) — Black-bead. 



2. LYSLLOMA 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-lauceolate, 

 S-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. — F. K. {Bah., Cuba.) 



— WiLD-TAMAKIND. 



3. ACACIA [Tourn.] L. Shrubs or trees, or sometimes herbs. Leaves 

 mostly 2-pinnate, sometimes reduced to phyllodia: leaflets usually numerous. 

 Spikes capitate or cylindric. Calyx cupulate or resembling the corolla. Petals 

 distinct or partially united. Filaments distinct, or some of them slightly 

 united at the base. Pods flat. — Acacia. 



1. A. angustissima (Mill.) Kuntze. Shrub with hirsute foliage: leaf-jnnnae 

 mostly 10-30: leaflets very numerous; blades oblong or narrowly oblong, 4-5 

 mm. long: calyx less than 1 mm. long; lobes deltoid, acute: corolla 2-2.5 mm. 

 long: pods linear-oblong, 3-4 cm. long, 6-9 mm. wide. [A. filicioides (Cav.) 

 Trelease. ] — Pinelands. 



4. VACHELLIA 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. — F. K. {Bah., Cuba, Ant.) — Yellow-opopanax. 



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

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

 distinct, or rarely slightly coherent. Filaments distinct or nearly so. Pod 

 linear, flat. 



1. L. glauca (L.) Benth. Shrub, or tree becoming 10 m. tall: leaflets 6-12 

 mm. long; blades narrowly oblong to lanceolate, over 1.5 mm. wide: calyx 

 2-2.5 mm. long or rarely shorter: petals 4-4.5 mm. long: pods 10-15 cm. 

 long. — Hammock^. — F. K. {Ber., Bah., Cuba, Ant.) — Lead-tree. 



6. MORONGIA Britton. Perennial herbs or partially woody plants, 

 with spreading or prostrate prickly stems. Leaves 2-pinnate: leaflets numerous, 

 usually sensitive. Spikes globular. Calyx-lobes minute. Petals united to the 

 middle or above it. Filaments distinct or nearly so. Pod narrow, turgid, not 

 jointed, prickly. 



1. M. angustata (T. & G.) Britton. Stem and branches reclining or prostrate: 

 blades of the leaflets narrowly oblong, 1.5-7 mm. long: peduncles armed like 

 the stem: calyx-lobes minute: carolla about 3 mm. long; lobes linear-lanceo- 

 late: pods 5-15 cm. long, beaked. — Pinelands. — Sexsitive-brier. 



7. NEPTUNIA Lour. Perennial unarmed diffuse, prostrate, or float- 

 ing plants. Leaves 2-pinnate: leaflets numerous, small or minute. Spikes 



