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, saliently 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 Grulla, San Pedro Martir Mountains, Lower California, Goldman 1256 

 (U. S. Nat. Herb.). 



10. Hulsea heterochromia A. Gray, 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, Vasguesia Interna 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 



