Part 1, 1914] CARDUACEAE : HELENIEAE 39 



Stem low, less than 3 dm. high, leafy at the base; plant perennial. 



Leaves thick, entire or merely sinuately toothed, densely tomentose; 



stem branched, with several heads. 3. H. vestita. 



Leaves comparatively thin, more loosely floccose, usually coarsely lobed 



or toothed; stems scapiform, monocephalous. 4. H. Parryi. 



Leaves linear or oblanceolate to oblong or obovate, viscid-villous, green, 

 sinuate-dentate. 

 Stem low, with the leaves crowded at the base, and with monocephalous 

 naked peduncles. 

 Leaves oblanceolate in outline, as well as their lobes obtuse; bracts 

 broadly lance-linear, acute. 

 Involucre densely villous, white; ligules short. 5. H. Larseni. 



Involucre not densely villous, green; ligules 7-8 mm. long. 6. H. nana. 



Leaves linear or linear-oblanceolate in outline, as well as their lobes 

 acutish. 

 Bracts linear -lanceolate, acute or short -acuminate; lobes or teeth 



of the leaves coarse, broadly triangular. 7. H. carnosa. 



Bracts narrowly linear-lanceolate, attenuate; teeth of the leaves 



small and more lance-triangular. 8. H. algida. 



Stem tall, equally leafy throughout; heads several. 



Leaves lanceolate, 1 -ribbed; peduncles elongate. 9. H. mexicana. 



Leaves oblong to obovate, 3-ribbed; peduncles short. 



Stem-leaves oval or elliptic or ovate, saliently-toothed ; rays nu- 10. H.heterochroma. 



merous. 

 Stem-leaves oblong-oblanceolate, denticulate; rays 10-12. 11. H. brevifolia. 



1. Hulsea calif ornica T. & G.; A. Gray, in Torr. Pacif. R. R. Rep. 6: 



77. 1857. 



A robust biennial; stem 5-10 dm. high, sparingly villous when young, glabrate in age; 

 peduncles more or less glandular; lower leaves spatulate, loosely villous when young, 8-10 

 •cm. long; stem-leaves lanceolate, the upper reduced, villous as well as glandular; heads 

 several; involucre hemispheric, about 2 cm. broad; bracts linear-lanceolate, acuminate, in 3 

 series, villous and glandular-puberulent, often purplish-tipped; ligules yellow, 10-12 mm. long; 

 tube of disk-flowers slender, 3.5 mm. long, glandular- villous ; throat cylinddc, 3 mm. long; 

 lobes triangular-ovate; achenes about 5 mm. long, silky- villous on the blunt angles; pappus- 

 squamellae obovate, erose, 1 mm. long. 



Type locality: San Diego. 

 Distribution: Southern California. 



2. Hulsea callicarpha .(H. M. Hall) S. Watson, sp. nov. 



Hulsea callicarphaS. Wats.; A. Gray, Syn. Fl.N. Am. I 2 : 342, merely mentioned under H. vestita. 1884. 

 Hulsea vestita callicarpha H. M. Hall, Univ. Calif. Publ. Bot. 1: 129. 1902. 



A floccose biennial or annual, often branched at the base as well as above, 2-9 dm. high, 

 densely floccose below, viscid- or glandular-hirsute above; lower leaves numerous, densely 

 white-floccose, obovate or spatulate, with winged petioles, 4-8 cm. long; upper leaves much 

 reduced, lanceolate, sessile; heads several; involucre 15-18 mm. broad; bracts in 3 series, 

 linear-lanceolate, acuminate, often purple- tipped, viscid-villous and glandular-puberulent; 

 ligules yellow or tinged with purple, 6-7 mm. long; tube of disk-corollas 2-2.5 mm. long, glandu- 

 lar; throat 5 mm. long; achenes 5 mm. long, silky- villous, especially on the angles; pappus- 

 squamellae obovate, fully 2 mm. long, neatly equaling the corolla-tube. 



Type locality: Thomas Valley, San Jacinto Mountains, California. 

 Distribution: Mountains of southern California. 



3. Hulsea vestita A. Gray, Proc. Am. Acad. 6: 547. 1865. 



Subscapose perennial, 1-2 cm. high ; leaves 2-3 cm. long, thick, white-tomentose, merely 

 crenulate or entire; stem-leaves minute; involucre 15 mm. high, 15-20 mm. broad; bracts 

 viscid-villous and puberulent, in 3 series, acute; ligules 6 mm. long, yellow; disk-corollas 

 numerous; tube 2 mm. long; throat 4 mm. long; achenes about 5 mm. long; silky-hirsute 

 ■on the angles; squamellae fully 2 mm. long, fully equaling the corolla- tube. 



Type locality: Volcanic hill south of Mono Lake, California. * 

 Distribution: Southern Sierra Nevada, California. 



