178 University of California Publications in Botany. [VOL. 3 



1. H. lugens Greene, Pitt. iv. 43 (1899). 



Stems erect, from a perennial multicipital caudex, 3 to 5 dm. 

 high : herbage loosely tomentose, the stems glabrate : leaves clus- 

 tered near the base, about 8 cm. long including the petiole, twice 

 or thrice pinnately parted into linear acute lobes: heads scat- 

 tered, on slender peduncles : involucral bracts broadly oblong or 

 obovate, obtuse, very unequal, the short outer ones with broad 

 reddish-brown margins, the inner somewhat scarious or greenish : 

 rays none : disk-flowers yellow ; throat cylindric, narrowed to the 

 nearly equal tube : anthers exserted : style-tips conic : villous hairs 

 of the achene somewhat shorter than the strongly 1-nerved obtuse 

 paleae, which either equal or are somewhat shorter than the 

 proper tube of the corolla. 



Mountains and foothills bordering the deserts: Transition 

 Zone at Bear Valley, San Bernardino Mts., Parish, no. 3717, Hall. 

 nos. 1339, 7558, and Abrams, no. 2899 ; Lower Sonoran Zone at 

 Coyote Canon, Riverside Co., Hall, no. 1178.1; Warner's Ranch. 

 San Diego Co., ace. to Parish; Cuyamaca Mts., Jul. 16, 1906, 

 Mrs. Brandegee; Tantillas Mts., Lower California, Palmer, no. 

 183 ; San Pedro Martir, Lower California, Brandegee. Professor 

 Greene includes Inyo Co. in the range of H. lugens, but he had 

 only specimens collected by Mr. Parish and the latter informs me 

 that he has not botanized in Inyo Co. An excellent species, well 

 marked, in its group, by the very unequal bracts of the involucre. 



2. H. filifolius Hook., Fl. Bor. Am. i. 317 (1834). 



Stems several and erect from the perennial caudex, 3 to 6 (Jm. 

 high, somewhat leafy: herbage loosely tomentose, the tomentum 

 deciduous except from the leaf -axils : leaves once or twice pin- 

 nately parted into linear lobes : heads few, in a loose terminal 

 cyme ; peduncles 1 to 8 cm. long : involucral bracts broadly oblong 

 or narrowed to the base, very obtuse, nearly equal, tomentose on 

 the back, the margins greenish-white : rays none : disk-flowers yel- 

 low, teeth reflexed : throat cylindric, narrowed to the nearly equal 

 tube : villous hairs of the achene commonly as long as the pappus- 

 paleae which barely equal the corolla-tube, or the paleae some- 

 times much shorter. 



Providence Mts., Mohave Desert, Jun. 6, 1902, Brandegee; 

 east to Nebraska. 



