Part 1, 1914] CARDUACEAE : HELENIEAE 41 



throat 3 mm. long; achenes 6-7 mm. long, long-silky on the angles; squamellae obovate, 

 fimbriate, 1 mm. long. 



Type locality: Mt. Dana, California. 

 Distribution: Sierra Nevada, California and Nevada. 



9. Hulsea mexicana Rydberg, sp. nov. 



A leafy annual or biennial; stem 5-6 dm. high, viscid-villous, branched above, with 

 nearly erect branches; leaves lanceolate, 1 -ribbed, 4-7 cm. long, salicntly dentate, green; 

 viscid-pubescent, sessile; heads few; peduncles 3-8 cm. long; involucre hemispheric, about 

 8 mm. high and 15 mm. broad; bracts in 3 series, viscid-villous, linear, acuminate; ligules 

 yellow, 7-8 mm. long; tube of disk-corollas 2 mm. long, puberulent; throat 4 mm. long, 

 glandular-puberulent; achenes 5 mm. long, silky-villous; pappus-squamellae oblong, acute, 

 1.5 mm. long. 



Type collected "at La GruUa, San Pedro Martir Mountains, Lower California, Goldman 1256 

 (U. S. Nat. Herb.). 



10. Hulsea heterochroma A. t>ray, Proc. Am. Acad. 7: 359. 1868. 



A tall annual or biennial; stem 4-15 dm. high, viscid-villous, leafy; leaves oblong, elliptic 

 or the upper ovate-lanceolate, sessile, 3-15 cm. long, dentate, viscid-pubescent; heads race- 

 mose; peduncles 1-3 cm. long; involucre about 2.5 cm. broad; bracts lanceolate, acuminate, 

 viscid-villous; ligules purplish or yellow, 7-8 mm. long, hirsute; tubes of the disk-corollas 2 mm. 

 long, glandular-hirsute; throat 2 mm. long; achenes 6 mm. long, long-silky on the angles and 

 slightly viscid; squamellae oblong, unequal, lacerate, the longer about equaling the corolla-tube. 



Type locality: Yosemite Valley, California. 



Distribution: At middle altitudes, central and southern California. 



11. Hulsea brevifolia A. Gray, Proc. Am. Acad. 7: 359. 1868. 



A leafy perennial; stem 3-5 dm. high, viscid-villous, branched above; leaves oblong, 

 3-5 cm. long, repand-dentate above the middle, viscid-villous, 3-ribbed; heads in leafy 

 corymbs; peduncles 1-5 cm. long; involucre turbinate, about 1.5 cm. broad; bracts linear- 

 lanceolate, acuminate, glandular-puberulent and viscid-villous; ligules yellow, 7-8 mm. long; 

 tube of disk-corollas 3 mm. long; throat 4 mm. long; achenes about 7 mm. long, long-silky; 

 squamellae 2 mm. long, obovate, erose. 



Type locality: Mariposa Big-tree Grove, California. 

 Distribution : Sierra Nevada of middle California. 



31. VASQUESIA Philippi, PI. Atac. 31. 1860. 



Villanova Lag. Gen. & Sp. Nov. 31. 1816. Not Villanova Ortega. 1797. 



Glandular pubescent annuals, with leafy stems and more or less dissected opposite or 

 alternate leaves. Heads radiate, usually cymose. Involucre campanulate or hemispheric; 

 bracts few, broad, subequal in two series, herbaceous, glandular-pubescent, somewhat enclosing 

 the marginal achenes. Receptacle small, naked. Ray-flowers in a single series, pistillate; 

 ligules broad, 3-toothed, yellow. Disk-flowers hermaphrodite, fertile; tube glandular- 

 pubescent; throat short, campanulate, often somewhat oblique, 5-toothed. Anthers sub- 

 sagittate at the base. Style-branches of the disk-flowers with' short, acute appendages. 

 Achenes cuneate, truncate or rounded at the apex, glabrous, compressed-triquetrous, i. e., 

 the outer face distinctly keeled. Pappus wanting. 



Type species, Vasquesia biterna Philippi. 



1. Vasquesia achillaeoides (Less.) Rydberg. 



Unxia achillaeoides Less, in Schlecht. & Cham. Linnaea 5: 159. 1830. 

 Villanova achillaeoides Less. Syn. Comp. 256. 1832. 



A glandular-pubescent annual; stem trichotomously branched, 2-3 dm. high; leaves 

 opposite, pinnatifid, subsessile or with broad petioles, 2-5 cm. long, sparingly pubescent and 



