r.> 



140 COXTRIBUTIOXS FROM THE NATIONAL HERBAEIUM. 



Style glabrous or pilose below; uppor tsla- 

 men free; leaves ^land-dotted. (Cajan- 



INAE.) 



Seeds 4 to many. 62. Cajanus (p. 210). 



Seeds 2^ very rarely 3. 63. lllvjnchosia (p. 211). 



Style bearded longitudinally on tlic inner 

 side or penieillate at the apex. (Piiaseo- 



LIXAE.) 



Keel twisted spirally. 64. Phaseolus (p. 213). 



Keel truncate or with a curved beak, 

 not spirally twisted. 



Stigma subsessile, oblique, inflexed 

 or inserted below the apex of the 

 style. 



Stigma very oblifpie, iTiflexed. 65. Vigna (p. 210). 

 Stigma subsessile, on the inner 



side of the stvle wliich is 



diUited at the apex. G6. Pachyrhizus (p. 218) 



Stigma terminal, not oblique. 67. DoUchos (p. 219). 



DESCRIPTIONS OF THE GENERA AND SPECIES. 



1, INGA Scop, 



Tnga Scoi\ Inlrud. 298. 1777. 

 Amosa Neck. Klem. 2: 459. 1790. 



Flowers 5 or 6-nierous; calyx tulnilar or eampanulate, dentate or broadly lobed; 

 corolla tubular or funnel-shaped, the petals connate to the middle or beyond it; 

 stamens indefinite, more or less united and forming a tube, long-exserted; ovary 

 sessile; seeds numerous; legume linear, straight or somewhat curved, flat^ quadrangu- 

 lar or almost terote, coriaceous or siunewhat flesliy, almost always with thickened 

 sutures, sub-dehiscent, pulpy between tl\e seeds or rarely without pulp. — Trees or 

 shrubs with pinnate leaves; rachis winge(l 1)e1ween the leaflets or sometimes not, 

 almost always bearing sessile or stipitate glands; flow(Ts often very large and tomen- 

 tose, in umbels or globose heads, sometimes in oval elongated spikes, solitary or in 

 fascicles, axillary or in crowded compound racemes on the ends of the branches. 



KEY TO TJIK SJ'KCIKS. 



St<uii, leaves, and flowers rusty brown tomentose or j)ubescent; 



rachis winged l^etween the leaflets. 1. /. vera. 



Stem, leaves, an<l flowers glabrous; rachis nttt wingr-tl between the 



leaflets. 



2. 7. laiirina. 



1. Inga vera Willd. 

 (Urban, 263.) « 



A large tree; leaflets 4 to 6-jugate, (tval or <41iptical-oblong, the largest 17 cm. long, 

 7 {;m. wide, sessile, spikes 10 to 13 cm. long; floAvers 4.5 to 5.5 cm. long; calyx 1 cm. 

 htng; corolla 1.5 cm. long; stamens white, legntne about 20 cm. long. 



In woods near I5ayamon; near dw<'llings on ^h)unt Jimenez, at Sierra de Luquillo; 

 near Los Mameyes; l)(^tween Aguas P.uenas and Caguas, along roads; on Blount Mesa, 

 near Mayaguez.— Jamaica, Haiti, Trinidad (Grisebach), Central America, Tolombia. 



" The references under Ihe species names are to (he full synonymy given by Urban 

 Symbolae Antillanae, volume 4. AH the pages cited, 262 to 312, were issued in 1905. 



