Part 1, 1914 J CARDUACEAE : HELENIEAE 35 



3 mm. long, narrowly obpyramidal, hispidulous on the edges; squamellae 8, obovate, 0.5 mm. 

 long, thickened near the base. 



Type locality: Valley of the Limpio, Texas. 

 Distribution: Western Texas. 



2. Bahia Schafifneri S. Wats. Proc. Am. Acad. 26: 142. 1891. 



Bahia anthemoides A. Gray, Proc. Am. Acad. 15: 40, in part. 1879. Not Achyropappus antkefnoides 

 H. B. K. 1820. 



A strigose annual; stem decumbent and branched at the base, strigose; leaves 

 mostly opposite, 2-3 cm. long, ternately three or four times dissected, with narrow 

 linear divisions, strigose; heads terminating the branches; peduncles 2-4 cm. long; in- 

 volucre hemispheric, 4-5 mm. high, about 8 mm. broad; bracts strigose, oblanceolate or 

 obovate, acute, somewhat yellowish towards the tip; ligules yellow, oval, 3 mm. long; tube 

 of disk-corollas slender, glandular, 2 mm. long; throat campanula te, 1.5 mm. long; achenes 

 narrowly obpyramidal, 3 mm. long, hispidulous on the angles; pappus of 8 obovate squamellae, 

 1 mm. long, with a short ovate thickening at the base. 



Type locality: Near San Luis Potosi. 

 Distribution: San Luis Potosi to Aquascalientes. 



3. Bahia xylopoda Greenman, Proc. Am. Acad. 34: 577. 1899. 



A perennial, somewhat woody at the base, with a taproot ; stem decumbent, branched from 

 the base, about 1.5 dm. high, grayish-hirsute; leaves opposite or alternate, thrice ternately 

 dissected into linear, obtusish divisions, grayish-hirtellous; heads solitary at the ends of the 

 branches; involucre about 6 mm. high and 10 mm. broad; bracts 2 in series, oblanceolate to 

 oblong, rounded or obtuse at the apex, grayish-hirsute and slightly glandular; ligules oblong, 

 about 6 mm. long; disk-flowers numerous; coroUa-tube 1.5 mm. long, glandular; throat cam- 

 panulate, about 1 mm. long; achenes 5-6 mm. long, narrowly obconic, striate, hirtellous; 

 squamellae narrowly obovate, distinctly callous-thickened for half their length. 



Type locality: Bare hills above Pachuca, Hidalgo. 

 Distribution: Hidalgo. 



4. Bahia Pringlei Greenman, Proc. Am. Acad. 32: 309. 1897. 



A perennial with a slender rootstock; stem branching from the base, ascending, 2-3 dm. 

 high, grayish-hirsute; leaves opposite or alternate, thrice ternately dissected into linear 

 divisions, white or grayish hirsute-pubescent; peduncles 3-5 cm. long, solitary at the ends of 

 the branches; involucre 6 mm. high, 15 mm. broad; bracts oblanceolate, acute, hirsute, in 3 

 series, the inner ones with scarious margins; ligules yellow, 6-7 mm. long, 2 mm. broad; disk- 

 flowers numerous; corolla-tube densely glandular, 2 mm. long, a little longer than the deeply 

 campanulate throat; achenes 4 mm. long, 4-angled, obscurely striate, puberulent; squamellae 

 about 8, obovate. 2 mm. long, thickened only at the base. 



Type locality: Calcareous bluff near Tula, Hidalgo. 

 Distribution: Hidalgo. 



5. Bahia Ehrenbergii Schultz-Bip. MS. sp. nov. 



A low perennial, somewhat woody at the base, branched, about 1.5 dm. high, grayish- 

 strigose; leaves mostly opposite, 1-2 cm. long, pinnatifid into linear-filiform divisions, strigose 

 and somewhat punctate; peduncles 1-3 cm. long; involucre 6 mm. high, 8-10 mm. wide; 

 bracts oblanceolate, acute, hirsutulous and glandular; ligules 8-10, linear, 5 mm. long, yellow; 

 disk-corollas many, 3 mm. long; tube nearly equaling the turbinate throat; achenes 3 mm. 

 long, hispidulous on the angles; squamellae of the pappus obovate-oblong, obtuse, 1-1.5 mm. 

 long, callous at the base. 



Type collected in Mexico, Ehrenberg 362 (Gray Herb.). 



