84 CASSIACEAE. 



the larger ones ovate: petals 13-15 mm. long, very diverse in shape: poda 

 falcate, more or less tetragonal, 3—4 mm, wide. — Pinelands and waste grounds. 

 Nat. of Trop. Am.— F. K. (Bah., Cuba, Ant.) 



4. C. bahamensis Mill. Plant woody: leaflets 6-10; blades subcoriaeeous, 

 ovate or acutely elliptical, niucronate, 3.5-5 cm. long: petiolar gland de- 

 pressed, between the lower pairs of leaflets to near base of rachis: stipules 

 ovate to lanceolate: sepals 7-12 mm. long: petals 15-20 mm. long, or some- 

 times smaller: pods flat, with lateral depressions between the seeds, 9-11 cm. 

 long, 5 mm. wide. — Pinelands. — F. K. {Bah., Cuba.) 



2. CHAMAECRISTA Moench. Herbs or shrubs. Leaves abruptly 1-pin- 

 nate: stipules persistent. Flowers clustered in leaf -axils. Sepals nearly dis- 

 tinct, membraneous. Petals mainly yellow or whitish. Pod flattish, promptly 

 dehiscent, the valves elastic. — Sensiti\t:-pea. Sexsitive-plant. 



Tall woody plants : smaller petals over 15 mm. long : pod glabrous. 1. 0. irachiata. 

 Low herbaceous plants: larger petals less than 10 mm. long: pod 

 pubescent. 

 Stem and branches erect or ascending: leaflets mostly 4<i-.'(4. 2. C. aspera. 



Stem and branches prostrate or decumbent : leaflets mostly 



lG-34. 3. C. Simpsonii. 



1. C. brachiata Pollard. Stem 2 m. tall or less, often widely branched above: 

 leaflets 20-28; blades linear, cuspidate, glabrous, midvein somewhat excentric: 

 petiolar gland much depressed, discoid: stipules lanceolate: sepals 15-20 mm. 

 long, glabrous or nearly so: standard 17-24 mm. long: pods 6-7 cm. long, 

 glabrous, often conspicuously banded. — Pinelands. 



2. C. aspera (Muhl.) Greene. Stem copiously hirsute, erect or ascending: 

 leaflets 40-54 ; blades narrowly linear, 15 mm. long or less, acuminate : petiolar 

 gland slender, erect, elongate: stipules linear-lanceolate: sepals 5-7 mm. long, 

 sparingly long-hairy: standard somewhat reniform, crenate, only about i as 

 long as the large wing-petal: pod hirsute, 2.8 cm. long, 6 mm. wide. — Pine- 

 lands and edges of hammocks. — F. K. (Bah.) 



3. C. Simpsonii Pollard. Stem branching from the base, the branches pros- 

 trate or decumbent, more or less puberulent and often partially hirsute: leaf- 

 lets 16-34; blades glabrous or nearly so, narrowly linear, 8 mm. long, or less, 

 each tipped with a black, rigid acuminate tip : petiolar gland minute, stipitate, 

 obconical : stipules lanceolate : sepals 5-7 mm. long, sparingly short-pubescent : 

 standard obovate, 6-7 mm. long, about as long as the large wing-petal: pods 

 linear, hirsute, 2 cm. long, 4-5 mm. wide. — Pinelands. — F. K. 



3. POINCIANA [Tourn.] L. Erect much-branched shrubs or trees. 

 Leaflets usually few and relatively large: blades rather broad. Sepals much 

 shorter than the petals. Blades of the short-clawed petals not flabellate. 

 Pod flat, narrow, the valves leathery. Seeds flattened. 



1. P. pulcherrima L. Shrub or small tree: leaflets glabrous; blades oblong 

 to cuneate, 15-25 mm. long: sepals 15-16 mm. long: corolla mainly red; 

 standard 25-27 mm. long: filaments 4.0-45 mm. long: pods 9-13 cm. long. — 

 Pinelands and cultivated grounds. Nat. of the W. Indies. — F. K. (Bah., 

 Cuba, Ant.) — Barbados-flower. 



4. GUILANDINA L. Reclining or spreading prickly shrubs. Leaflets 

 relatively few or numerous and large: blades broad. Sepals as long as the 

 petals or nearly so. Blades of the narrow petals mainly spatulate. Pod nearly 

 as wide as long, turgid. Seeds turgid. 



Leaves with follaceous stipules : seeds gray or lead-colored. 1. O. Crista. 



Leaves without stipules : seeds yellow. 2. Q. Bonduc. 



