Part 1, 1914] CARDUACEAE : HELENIEAE 73 



nearly glabrous; peduncles 1-3 cm. long, slender; involucre turbinate, 1 cm. high or less, and 

 about as broad; bracts linear, acute or the inner acuminate, finely glandular-puberulent ; 

 corollas white, minutely puberulent, 6 mm. long; achenes 5 mm. long, puberulent; squamellae 

 oblong, obtuse, 3 mm. long. 



Type locality: Top of Mount Parks, Idaho. 

 Distribution: Known only from the type locality. 



30. Chaenactis alpina (A. Gray) M. E. Jones, Proc. Calif. Acad II. 



5: 699. 1895. 



Chaenactis Douglasii alpina A. Gray, Syn. Fl. N. Am. I 2 : 341. 1884. 

 Chaenactis leucopsis Greene, Leaflets 2: 221. 1912. 

 Chaenactis rubella Greene, Leaflets 2: 222. 1912. 



A subacaulescent perennial with a cespitose caudex or rootstock; leaves crowded at the 



base, 3-5 cm. long, oblanceolate or elliptic in outline, pinnatifid with oblong, crenate or lobed, 



crowded divisions, finely floccose when young, glabrate in age; peduncles 3-6 cm. long, rarely 



with 1 or 2 leaves, glandular-puberulent; involucre 8-10 mm. high, 10-15 mm. broad; bracts 



linear, obtuse, at first somewhat floccose, glandular-puberulent, tinged with purple; corollas 



all alike, flesh-colored, glandular-puberulent, 6 mm. long; achenes 6 mm. long, hirsute, purplish; 



squamellae about 8, linear or oblong, obtuse, 3-5 mm. long. (C. leucopsis is a more floccose 



form.) 



Type locality: "Alpine region of Rocky and Cascade Mountains in Colorado and Wyoming." 

 Distribution: Colorado to Montana, California and Oregon. 



31. Chaenactis pumila Greene, Leaflets 2: 223. 1912. 



? Chaenactis Mainsiana Nelson & Macbride, Bot. Gaz. 56: 477. 1913. 



A scapose perennial with a rootstock; leaves crowded at the base, broadly obovate in 

 outline, 2-4 cm. long, twice pinnatifid with divergent, crowded segments, sparingly floccose, 

 or in age glabrate, except the rachis; peduncles 2-4 cm. long, densely glandular; involucre 

 turbinate, decidedly acute at the base, 10-12 mm. long and as broad, densely glandular- 

 hirsute, dark-red; bracts linear, acute, with 1 or 2 linear looser and shorter bracts below; 

 corollas flesh-colored, about 6 mm. long; achenes 6-7 mm. long, hirsutulous; squamellae 4 mm. 

 long, oblong, obtuse, unequal, the longer 4 mm. long. 



Type locality: Sonora Pass, California. 



Distribution: Sierra Nevada, California; mountains of eastern Oregon (and Idaho?). 



32. Chaenactis santolinoides Greene, Bull. Torrey Club 9: 17. 



1882. 



A subacaulescent perennial with cespitose caudex; stems scapiform, 1-2 dm. high; leaves 

 basal, tufted, 5-8 cm. long, densely white-woolly, linear or linear-lanceolate in outline, pinnately 

 lobed with short oblong or rounded toothed segments; scape glandular-puberulent; involucre 

 8-10 mm. high, about 10 mm. broad; bracts linear, obtuse, densely glandular; corollas white 

 or flesh-colored, 6-7 mm. long, glandular-puberulent, those of the margins not dilated; anthers 

 only slightly protruding; achenes 7 mm. long, densely hirsute; squamellae 8-10, linear, obtuse, 

 about 5 mm. long. 



Type locality: San Bernardino Mountains, California. 

 Distribution: Southern California. 



33. Chaenactis nevadensis (Kellogg) A. Gray, Bot. Calif. 1: 391. 



1876. 

 Hymenopappus nevadensis Kellogg, Proc. Calif. Acad. 5: 46. 1873. 



A subacaulescent perennial with creeping cespitose rootstocks; leaves all near the base, 

 2-4 cm. long, obovate, cuneate, or flabelliform in outline, once or twice pinnatifid into obovate 

 or spatulate lobes, densely villous; scapes 1 dm. long or less, glandular-puberulent; involucre 

 12-15 mm. high and as broad; bracts linear, obtuse, densely glandular; corollas 7 mm. long, 



