Part 4, 1924] POLYGALACEAE 321 



along costa and toward apex, incurved-ciliolate; keel glabrous, 3-5 mm. long; capsule ovate- 

 oval, somewhat narrowed above, emarginate, rounded at base, incurved-puberulous and -cilio- 

 late, 5.S-S.5 mm. long; seed short-pointed at base, pilose, 4.3 mm. long; aril pedicellate by 

 the pointed base of seed, 0.4-0.5 mm. high, 1.3 mm. long dorsally, obcuneate-lanceolate as seen 

 from above, nearly horizontal, subcntire, the densely pilose umbo about 0.3 mm. high, the 

 anterior portion of the scarious margin subtruneate, vizor-like, the posterior portion shorter, 

 narrower, acutish. 



Tvpe collected near Fort Huachuca, Arizona, August, 1894, T. E. Wilcox (U. S. Nat. Herb. 

 no. 213259). 



22. Polygala leptosperma Chod. Mem. Soc. Phys. 

 Geneve 3 1(2) 2 : 17. 1893. 



Suffrutescent at base, 12 cm. long, hirsute-tomentose above; leaves lanceolate to lance- 

 linear, 1.5-2.2 cm. long, 7-9 mm. wide, acute, subtomentose-velutinous; flowers 6-7 mm. long; 

 sepals lance-linear-subulate, setose-ciliate ; wings elliptic-lanceolate, subacute, subunguiculate, 

 equaling keel, long-cilia te on margin and back; filaments pilose; capsule ovate-cuneate, broad- 

 est above base, narrowed gradually toward apex, hispid, deeply emarginate; aril small, capi- 

 telliform, the very narrow scarious crenate margin with very short upturned dorsal lobe and 

 no lateral lobes. 



Type locality: Oaxaca (state). 



Distribution: Oaxaca. 



Illustration: Mem. Soc. Phys. Geneve 31(2) 5 : pi. 13, f. 19-22. 



23. Polygala Barbeyana Chod. Mem. Soc. Phys. 

 Geneve 31(2) 2 : 16. 1893. 



Stems several, fruticulose below, up to 4 dm. high, densely incurved-pubescent or at 

 length subglabrate; leaves reduced, the lowest oblong, 5 mm. long, the middle and upper sub- 

 squamiform, linear or linear-lanceolate, 5-10 mm. long, 1-1.5 mm. wide, subsessile; racemes 

 loose, 1.7-11 cm. long; wings obovate-oval or suborbicular-oval, 3.5-4.5 mm. long, 2.5-3 mm. 

 wide, acutish, pubescent along middle and toward apex, ciliate; capsule oval, rarely oval- 

 oblong, slightly narrowed at base, ciliate, 5-7 mm. long; seed sericeous, 3 mm. long; aril small, 

 about 0.7 mm. high, cap-shaped, subpedicellate by the pointed base of seed, with narrow not 

 lobed scarious margin and more or less distinct but short dorsal lobe. 



Type locality: San Luis Potosi (state). 

 Distribution: Arizona to Coahuila and San Luis Potosi. 



Illustrations: Mem. Soc. Phvs. Geneve 31(2) : : pi. 13, f. 15-18; Contr. Gray Herb. 47: 

 pl.l.f.U. 



24. Polygala zacatecana Blake, Contr. Gray 

 Herb. 47: 26. 1916. 



Several-stemmed, suffruticulose below, 1-1.3 dm. high, incurved-griseous-puberulous; 

 leaves reduced, the lower oblong or oval, 4-5 mm. long, the upper linear-lanceolate, 4.5-10 mm. 

 long,0.S-l mm. wide, puberulous, involute ; racemes loose, 2-5 cm. long; sepals lanceolate, acumi- 

 nate; wings oval-obovate, 4 mm. long, 2.8 mm. wide, rounded, sparsely pubescent at apex and 

 along midline; keel 4.5-5 mm. long; capsule oval, slightly broader at the base, ciliolate, 5.5 

 mm. long; seed 5 mm. long; aril very small, very sparsely pubescent with subglabrous umbo, 

 the very narrow scarious margin entire. 



Type locality-: Near Concepcion del Oro, Zacatecas. 

 Distribution: Known only from the type locality. 



25. Polygala intricata Blake, Contr. Gray 

 Herb. 47: 26. 1916. 



Stems about 1 dm. long, branching, flexuous, ascending, densely and canescently incurved- 

 puberulous; lowest leaves oblong, 3 mm. long, the middle and upper linear or linear-lanceolate, 

 11-14 mm. long, 1.5-2.5 mm. wide, subsessile, incurved-puberulous; racemes flexuous, 9—12- 

 flowered; sepals ovate-oblong to lanceolate, 2.5 mm. long; wings obovate, 3.5-4 mm. long, 



