320 NORTH AMERICAN FLORA [Volume 25 



spreading hairs; keel pilose below, 5-5.3 mm. long; capsule elliptic-ovate, notched, at base 

 rounded, densely pubescent, 7-8 mm. long, short-stiped; seed 4.3 mm. long; aril 1 mm. high, 

 the pilose umbo 0.5 mm. high, the scarious slightly repand margin very shortly upturned at the 

 dorsal apex. 



Type locality: Cape San Lucas. Lower California. 



Distribution: Southern Lower California. 



Illustration: Mem. Soc. Phys. Geneve 31(2)': pi. 15, f. 43-45. 



18. Polygala serpens Blake, Contr. Gray 

 Herb. 47: 21. 1916. 



Suffruticulose, many-stemmed, procumbent, 8-30 cm. long, incurved-puberulous; leaves 

 ovate, 1.5-2.8 cm. long, 8-13 mm. wide, acuminate, at base rounded, thin, iucurved-spreading- 

 pubescent; racemes loosely 5-12-flowered, 2-2.5 cm. long; flowers apparently ochroleucous ; 

 sepals lanceolate, acuminate, 2.6 mm. long; wings elliptic, 5.5-7 mm. long, 4 mm. wide, obtuse 

 or rounded, at base broadly cuneate, sparsely puberulous along costa; keel glabrous, 4.5-4.8 

 mm. long; capsule deltoid-ovate, narrowed above, truncate-rounded at base, ciliate and spread- 

 ing-puberulous, 5.5-7 mm. long; seed short-pilose, 4 mm. long; aril minute, capitelliform, 

 pilose, 0.5 mm. high, the scarious margin obsolete. 



Type locality: Acapulco, Guerrero. 

 Distribution: Known only from the type locality. 

 Illustration: Contr. Gray Herb. 47: pi. l,f. 10. 



19. Polygala Pavoni Chod. Mem. Soe. Phys. 

 Geneve 31(2) 2 : 14. 1893. 



Undershrub; stems puberulous, ascending, 1-2 dm. long; leaves elliptic or elliptic-ovate; 

 20 mm. long, 12 mm. wide, obtuse, "irregular and diverse," puberulous; racemes few-flowered; 

 flowers 5-6 mm. long; sepals lance-linear, acute, pubescent; wings elliptic, subsessile, obtuse, 

 glabrous, reticulate-veined; upper petals dilated at apex, subacute, scarcely shorter than keel, 

 staminal tube and free portion of filaments long-pilose; ovary elliptic, ciliate; fruit and seed 

 unknown. 



Tvpe locality: Mexico. 



Distribution: Known only from the type locality. 



20. Polygala Magdalenae Brand. Univ. Calif. Publ. 

 Bot. 4: 182. 1911. 



Stems prostrate to erect, 1-3 dm. long, incurved-griseous-puberulous; lowest leaves oval- 

 oblong, 7 mm. long, the middle and upper oblong or oblong-ovate to linear, 0.8-2 cm. long, 

 2-8 mm. wide, rounded or retuse to acutish, rather densely incurved-puberulous, not reticu- 

 late; racemes loose, 4-10.5 cm. long; flowers apparently ochroleucous; sepals lanceolate, 

 acute, 2 mm. long; wings narrowly obovate-oval, 4.5 mm. long, 2.8 mm wide, obtuse, 

 puberulous above; keel 3.5-4 mm. long; capsule oval, appressed-puberulous, 7.5-9.5 mm. 

 long; seed 4 mm. long; aril minute, 0.7 mm. high, with pubescent umbo and very narrow 

 barely crenate margin. 



Type locality: Magdalena Island, Lower California. 

 Distribution: Lower California. 



2 1 . Polygala piliophora Blake, sp. nov. 



Stems several, suffrutescent below, about 1 dm. high, densely and subcanescently incurved- 

 puberulous; lower leaves oblanceolate, the middle and upper linear-lanceolate or linear-elliptic, 

 9-17 mm. long, 1.8-2.8 mm. wide, acute to acuminate at each end, densely incurved-puberulous, 

 thickish, 1-nerved, involute; peduncles very short; racemes loose below, dense above, the axis 

 3.2-5 cm. long; pedicels 1.5-2 mm. long; flowers apparently ochroleucous; sepals ovate, 

 obtuse or acute, 2.2-2.5 mm. long; wings oval or obovate, 4-4.2 mm. long, 2-2.8 mm. wide, 

 obtuse to rounded, cuneate at base, somewhat vescicle-bearing, incurved-puberulous chiefly 



