STANDLEY TREES AND SHRUBS OF MEXICO. 443 



r Leaflets 9 or 11, 4 to 5 mm. long ; style with a minute gland. 



3. E. peninsularis. 

 Leaflets 13 to 17, 3 to 4 mm. long; style glandless 4. E. spinosa. 



Calyx only slightly irregular, in fruit tubular-campanulate, the slit between 

 the posterior lobes short, the anterior lobes only slightly longer than the 

 posterior ones. 

 Style pubescent, glandless; fruit 5 to 8 mm. long; leaflets 9 to 13. 2 to 2.5 



iriiii. long 5. E. parvifolia. 



Style glabrous, gland-bearing; fruit 7 to 20 mm. long; leaflets 21 to 51, 3 

 to 25 mm. long. ' ''"''' 

 Fruit reflexed in age, punctate with 'nconspicuous glarids; standard con- 

 spicuously notched 6. E. polystachya. 



Fruit ascending, punctate^ with conspicuous glands; standard petal only 

 slightly notched. 

 Fruit 12 to 13 mm. long, 3.5 to 4 mm. wide, straight or nearly so; leaf- 

 lets 41 to 49, 12 to 15 mm. long 7. E. platycarpa. 



Fruit 7 to 10 mm. long, 2 to 2.5 mm. wide, curved ; le:;flets 15 to 31, 5 

 to 11 mm. long 8. E. texana. 



1. Eysenhardtia punctata Pennell, N. Amer. Fl, 24: 39. 1920. ♦ 

 Aguascalientes and Jalisco ; type collected between Bolaiios and Guadalajara, 



Jalisco. 



Shrub or small tree, 3 to 5 meters high, with fragrant foliage; leaflets oval- 

 oblong, glabrate; racemes 4 to 9 cm. long; calyx 3 to 4 mm. long; fru-it 4.5 to* 

 5 mm. wide, straight. " Palo dulce " (Aguascalientes). 



2. Eysenhardtia schizocalyx Pennell, N. Amer. Fl. 24: 39. 1920. 

 Known only from the type locality, Mapimf, Durango. 



Branchlets cinereous-canescent ; leaflets oval or broadly oblong. 4 to 6 mm. 

 long, appressed-pubescent ; petals 4 to 4.5 mm. long ; fruit 2.5 to 3 mm. wide. 



3. Eysenhardtia peninsularis T. S. Brandeg. Univ. Calif. Publ. Bot. 4: 180. 



1911. 

 Baja California. 



Densely branched shrub, the branchlets cinereous-canescent ; leaflets oblong, 

 puberulent beneath ; racemes 2 to 5 cm. long; petals 4 to 5 mm. long. 



4. Eysenhardtia spinosa Engelm. ; A. Gray, Bost. Journ. Nat. Hist. 6: 174. 

 . 1850. 



Chihuahua ; type from Lake Encinillas. 



Densely branched shrub, the branchlets cinereous-canescent ; leaflets oblong 

 or oval, puberulent beneath ; racemes 1 to 3 cm. long ; petals 4 to 4.5 mm. 

 long; fruit 2 mm. wide. 



5. Eysenhardtia parvifolia T. S. Brandeg. Univ. Calif. Publ. Bot. 4: 180. 



1911. 

 Known only from the type locality, Sierra de Parras, Coahuila. 

 Densely branched shrub, the branchlets canescent ; leaflets elliptic-oval, 

 glabrate; racemes 5 to 10 mm. long; fruit 1.7 to 2 mm. wide, glabrous. 



6. Eysenhardtia polystachya (Ortega) Sarg. Silv. N. Amer. 3: 29. 1892. 

 Viborquia polystacha Ortega, Hort. Matr. Dec. 66. 1798. 

 Eysenhardtia aiiiorphoides H. B. K. Nov. Gen. & Sp. 6: 491. 1824. 

 Varennea polystachya DC. Prodr. 2: 522. 1825. 



Eysenhardtia amorphoides orthocarpa A. Gray, PI. Wright. 2: 37. 1853. 

 Eysenhardtia orthocarpa S. Wats. Proc. Amer. Acad. 17: 339. 1882. 

 1 Psoralea stipularis Sesse & Moc. Fl. Mex. ed. 2. 169. 1894. 

 Eysenhardtia reticulata Pennell, N. Amer. Fl. 24: 36. 1919. 



