STANDLEY TREES AND SHRUBS OF MEXICO. 591 



50. Polygala apopetala T. S. Braudeg. Proc. Calif. Acad. II. 2: 130. pi. 3. 1889. 

 Southern Baja California ; type from Comondti. 



Shrub or small tree, 5 meters high or less, the branches strigillose; leaves 

 ovate, 2.5 to 5 cm. long, 1.7 to 2.2 cm. wide, sparsely strigillose ; racemes 

 terminal, loose, 5 to 19 cm. long; flovv^ers pinkish purple; wings suborbicular, 

 12 to 15 mm. long and wide, reticulate ; capsule quadrate-orbicular, emarginate, 

 1.5 to 1.9 cm. long; seed ellipsoid, 9 mm. long; aril corneous, 0.5 mm. long. 



51. Polygala fishiae Parry, Proc. Davenport Acad. 4: 39. 1884. 



Northern Baja California ; type collected near Sauzal, Todos Santos Bay. 

 Southern California. 



Frutescent, about 1.5 meters high, glabrous or very sparsely strigillose; 

 leaves oblong or oblong-lanceolate, 1.7 to 5 cm. long, 4 to 14 mm. wide, rounded 

 or retuse, glabrous ; racemes 2.5 to 20 cm. long ; flowers purplish, whitish, and 

 yellowish, 8.5 mm. long; wings obovate, ciliolate ; capsule suborbicular, 7.5 mm. 

 long; seed pilose, 5 mm. long. 



52. Polygala nitida T. S. Brandeg. Univ. Calif. Publ. Bot. 4: 272. 1912. 

 Known only from the type locality, Bagre, Minas de San Rafael, San Luis 



Potosi. 



Frutescent, decumbent, finely incurved-puberulous, about 20 cm. long; lower 

 leaves elliptic to oval, 1 to 2 cm. long, 7.5 to 12.5 mm. wide, rounded, cuspidate, 

 reticulate, shining, glabrous or sparsely puberulous beneath along costa, the 

 upper more oblong; racemes 3 to 9-flowered, 1.5 to 3.5 cm. long; flowers rose- 

 colored ; wings oblong-obovate, 5.5 mm. long ; keel yeUowish ; capsule 4 mm. long, 

 oval, subreticulate-striate. 



53. Polygala eucosma Blake, Contr. Gray Herb. n. ser. 47: 72. 1916. 

 Coahuila to Hidalgo ; type from the Sierra Madre south of Saltillo, Coahuila. 



Southern New Mexico. 



Fruticulose, manj'-stemmed, procumbent, 4.5 to 20 cm. long or more, minutely 

 incurved-puberulous ; leaves oval or elliptic, 4 to 9 mm. long, 2 to 6.5 mm. 

 wide, acute or obtuse, coriaceous, scarcely reticulate, glabrous or very sparsely 

 incurved-puberulous ; racemes 2 or 3-flowered ; flowers rosy ; wings obovate, 



4 to 4.5 mm. long, 1.8 to 2.8 mm. wide. 



54. Polygala lindheimeri A. Gray, Bost. Joum. Nat. Hist. 7: 150. 1850. 

 Polygala einoryi Blake, Contr. Gray Herb. n. ser. 47: 72. 1916. 



Nuevo Leon. Texas and New Mexico ; type from the upper Guadalupe and 

 Pierdenales rivers, Texas. 



Stems several, fruticulose below, erect to decumbent, densely spreading- 

 pilose or pilosulous or rarely incurved-spreading-pubescent, about 18 cm. long; 

 lower or all the leaves elliptic or oval, rarely orbicular, 5 to 13 mm. long, 

 3 to 12 mm. wide, coriaceous, spreading-pilosulous or incurved-spreading- 

 puberulous, reticulate, the middle and upper usually oblong or lance-oblong 

 and acute ; racemes 2 to 8-flowered, geniculate ; wings oblong-obovate, 4.5 to 



5 mm. long; capsule oblong, striate. 



55. Polygala tweedyi Britton; Wheelock, Mem. Torrey Club 2: 143. 1891. 

 Polygala lindheimeri parvifolia Wheelock, Mem. Torrey Club 2: 143. 1891. 

 Polygala arizonae Chod. M6m. Soc. Hist. Nat. Gen&ve 31^ 108. 1893. 

 Polygala arizonae tenuifolia Chod. M6m. Soc. Phys. Hist. Nat. Geneve 31': 



109. 1893. 

 Polygala texensis Robinson in A. Gray, Syn. Fl. 1^: 451. 1897. 

 Polygala parvifolia Woot. & Standi. Contr. U. S. Nat. Herb. 19: 392. 1915. 

 Polygala blepharotropis Blake, Contr. Gray Herb. n. ser. 47: 73. 1916. 



