1921] Smiley: Flora of the Sierra Nevada of California 379 



16. HULSEA 



Leaves radical, the stems scapose or (in H. vestita var. pygmaea) obsolete, with 

 a few bract-like leaves. 

 Eays 20-30 or sometimes fewer or wanting, short; plants permanently white 



tomentose 1. H. vestita 



Eays numerous (60-100), long and narrow, conspicuous; tomentum caducous 



2. H. algida 



Stems leafy to the top: no white tomentum, the stems and foliage glandular; 

 rays broad and showy 3. H. brevifolia 



1. Hulsea vestita Gray, Proc. Am. Acad., vol. 6, p. 547. 1866. 



Type locality. — ' * In dry volcanic ashes, near the summit of a vol- 

 canic hill south of Lake Mono, alt. about 9,000 feet." 



Range. — Sierra Nevada and San Bernardino Mountains of Cali- 

 fornia, and in southwest Nevada. 



Zone. — Transition and Canadian, 



Specimens examined. — ^Volcanic hill south of Mono Lake, 9,000 

 feet, Brewer 1824; Upper San Joaquin, Madera County, Congdon, 

 August 19, 1895 ; soda springs of the San Joaquin, Congdon, August 

 16, 1899 ; Olancha Mountain, Tulare County, 9,500 feet, gravel slopes, 

 Hall and Babcock 5263. 



la. Hulsea vestita var. pygmaea Gray, Syn. Fl., vol. 1, pt. 2, p. 

 343. 1884. 



Type locality. — "San Bernardino Co., on the summit of Grayback 

 Mountain." 



Range. — Southern Sierra Nevada and San Bernardino Mountains. 



Zone. — Canadian to Arctic-alpine. 



Specimen examined. — Sandy plains near Mt. Whitney, 10-12,000 

 feet, Purpus 1598. 



This variety differs in having the heads sessile in the radical tuft 

 of leaves and the rays of a deeper hue than in the type. 



2. Hulsea algida Gray, Proc. Am. Acad., vol. 6, p. 547. 1865. 



S. caespitosn A. Ncls. and Kennedy, Proc. Biol. Soc. Wash., vol. 19, p. 38. 

 1906. 



Type locality. — ^"Iligh peaks of the Sierra Nevada, on Mount 

 Dana, at 11,500 feet, and Wood's Peak, 10,500 feet." 



Range. — Central and southern Sierra Nevada ; also in the Wallowa 

 Mountains of eastern Oregon. 



Zone. — Arctic-alpine. 



