STANDEE Y TREES AND SHRUBS OF MEXICO. 439 



Leaflets mostly 2 to 4 cm. long, green, sparsely strigose. 



14. I. cuernavacana. 

 Leaflets mostly less than 1.5 cm. long, densely gray-strigose. 



15. 1. conzattii. 

 Corolla 7 to 10 mm. long. 



Racemes 4 cm. long or shorter, few-flowered 16. I. palmeri. 



Racemes 5 to 20 cm. long, many-flowered. 



Leaflets 3 to .5 pairs; fruit 2.5 to 4 cm. long 17. I. fruticosa. 



Leaflets 6 to 10 pairs ; fruit 1.5 to 2.5 cm. long. 



18. 1. thibaudiana. 



1. Indig-ofera platycarj^ Rose, Contr. U. S. Nat. Herb. 8: 47. pi. 7. 1903. 

 Guerrero and Morelos ; type from limestone mountains near Iguala, Guerrero. 

 Erect shrub, 1.5 to 4.5 meters high, with reddish l)rown branches; leaflets oval 



or oblong, 1 to 1.5 cm. long, obtuse ; fruit 2 to 3 cm. long, 3 to 4 mm. wide. 



2. Indigofera sabulicola Benth. in Mart. Fl. Bras. 15 ^: 40. 1859. 



Guerrero, Oaxaca, and Veracruz. Central America, AVest Indies, and South 

 America ; type from Brazil. 



Plants prostrate, fruticose or almost wholly herbaceous, densely .sericeous ; 

 leaflets about 5 mm. long ; flowers 7 mm. long. 



3. Indigofera ornithopodioides Schlecht. & Cham. Linnaea 5: 577. 1830. 

 Indigofera leptosepala Nutt. ; Torr. & Gray, Fl. N. Amer. 1: 298. 1838. 

 Indigofera acutifolia Schlecht. Linnaea 12: 282. 1838. 

 Indigofera me.vicnna Benth. PI. Hartw. 286. 1848. 



Chihuahua to Tamaulipas and Oaxaca ; type from Veracruz. Texas. 



Plants prostrate or procumbent, chiefly herbaceous but sometimes shrubby; 

 leaflets usually 5 or 7, rounded or refuse at apex ; flowers 5 to 6 mm. long. 



It is possible that the Mexican material includes more than one species, but 

 there are no apparent lines of division. The description of /. hippocrejwidcs 

 Schlecht.^ suggests this species, but that plant may belong to some other genus. 

 The same is true of /. coronilloides Mart. & Gal.' 



4. Indigofera lespedezioides H. B. K. Nov. Gen. & Sp. 6: 4.57. 1823. 

 Michocican to Oaxaca; reported, probably erroneously, from Chihuahua; 



type from Volcan de Jorullo. Centi-al America, Cuba and Jamaica, and South 

 America. 



Shrub or herb, a meter high or less ; leaflets 3 or 5 or often only 1, rounded 

 or retuse at apex ; flowers red or purplish. 6 to 7 mm. long. "Anil cimarr6n " 

 (Cuba); " cachecahua," " escorzonera de .liquilite " (Guatemala, Honduras, 

 Blake). 



Said to be of some value as a forage plant in Cuba. Used in Guatemala as 

 a remedy for stomach troubles. 



5. Indigofera sphaerocarpa A. Gray, PI. Wright. 2: 37. 1853. 



Northern Chihuahua and Sonora ; type from Santa Cruz, Sonora. Southern 

 Arizona. 



Slender erect shrub ; leaflets about 17, 1 to 1.5 cm. long ; flowers 3 mm. long ; 

 fruit 3 to 4 mm. long. 



6. Indigofera densiflora Mart. & Gal. Bull. Acad. Brux. 10 ==: 44. 1843. 

 Mexico. Morelos, Puebla, and Oaxaca (type locality). 



Slender shrub, about 2 meters high; leaflets about 19, oblong to oval, 1.5 to 

 2 cm. long ; fruit about 8 mm. long. 



'Linnaea 12:283. 1838. 

 'Bull. Acad. Brux. 10=: 45. 1843. 

 55268—22 18 



