170 CAESALPINIACEAE. 



5. Chamaecrista inaguensls Britton, Bull. Torr. Club 44: 8. 1917. 



Cassia inaguensis Britton, Bull. N. T. Bot. Gard. 3: 443. 1905. 



A much-branclied shrub, 6-12 dm. bigh, the twigs pubescent. Leaflets 1 or 

 2 pairs, glabrous, coriaceous, rigid, shining, oblong to obovate, strongly and 

 finely many-veined, emarginate or rounded at the apex, narrowed but not 

 cuneate at the base, more or less inequilateral, 1.5-3 cm. long, 5-13 mm. wide; 

 petiole 2-6 mm. long, sparingly pubescent, bearing a stipitate gland near the 

 top; stipules lanceolate-subulate, 2-4 mm. long, pubescent, persistent; flowers 

 solitary in the axils, numerous, the filiform sparingly pubescent peduncles 2-3 

 cm. long ; sepals pubescent, at least at the base, obliquely lanceolate, acuminate, 

 1 cm. long or less; petals golden yellow, about 1.5 cm. long; young legume 

 densely pubescent. 



Open scrub-land, Grand Turlr Island, Caicos and Inagua. Endemic. 



6. Chamaecrista lineata (Sw.) Greene, Pitt. 4: 31. 1899. 



Cassia lineata Sw. Prodr. 66. 1788. 



A usually much-branched shrub, 3-10 dm. high, the twigs finely pubescent 

 or glabrate. Leaflets 3-8 pairs, oblong, linear-oblong, oblanceolate or obovate, 

 coriaceous, 6-20 mm. long, 2-7 mm. wide, rounded and mueronulate at the apex, 

 dull, rather strongly pinnately veined, glabrous or puberulent, the petiole 3-8 

 mm. long, bearing a sessile gland; stipules lanceolate, acuminate, as long as 

 the petioles or shorter; flowers solitary in the axils, 2-3 em. broad; petals 

 obovate; sepals lanceolate, acuminate, 7-10 mm. long; legume linear, pubescent, 

 2.5-6 cm. long, 5-6 mm. wide, short-beaked. 



Scrub, palmetto, and pine-lands, througliout the archipelago from Abaco and 

 Great Bahama to Watling's, Nortb Caicos, Ambergris Cay and Inagua : — Cuba ; 

 Hispaniola ; Anegada ; Jamaica. Reported by Hitchcock and by Mrs. Northrop as 

 Cassia poliiadena DC, and also referred to that species by Bentham ; reported by 

 Dolley as Cassia Chamaecrista L. 



4. PARKXN-SONIA L. Sp. PI. 375. 1753. 



Spiny shrubs or small trees, with nearly sessile, bipinnate leaves, the 

 common petiole very short and spinulose-tipped, the 1 or 2 pairs of pinnae 

 elongated, with several-many, small leaflets, the showy, yellow flowers in 

 racemes. Calyx-tube short, the 5 narrow segments nearly equal. Petals 5, 

 spreading, nearly equal. Stamens 10, distinct; filaments villous at the base; 

 anthers all alike, versatile, the sacs longitudinally dehiscent. Ovary short- 

 stipitate, many-ovuled; style nearly filiform; stigma small and terminal. Pod 

 linear, coriaceous, torulose, striate-veined, 2-valved. Seeds oblong, longitu- 

 dinally placed, hard; endosperm horny; cotyledons flat. [Commemorates John 

 Parkinson, an Einglish botanist, herbalist to James I, who died in 1750.] 

 Three known species, of tropical and subtropical America and Africa, the 

 following typical. 



1. Parkinsonia aculeata L. Sp. PI. 375. 1753. 



A shrub, or a tree up to about 9 m. high, with nearly smooth brown bark, 

 and slender, spreading or drooping branches, the young twigs pubescent, the 

 stipular spines 2 cm. long or less. Pinnae 1 or '2 pairs, appearing like sessile 

 pinnate leaves, 2-4 dm. long, the rachis flat, narrowly winged, bearing 10-25 

 pairs of short-petioluled, linear to obovate leaflets 1.5-8 mm. long, or some- 

 times without leaflets; racemes few-several-flowered, as long as the leaves or 



