354 PROCEEDINGS OF THE AMERICAN ACADEMY. 
thick leaves;’’? leaves all basal, broadly rhombic-oval or orbicular, 
subacute, velvety with appressed hairs especially when young, 4.5-8 
em. long, 3-6 cm. wide, on broadly margined petioles of about the 
same length; scapose peduncles channeled and finely pubescent, 
3.5-4.5 dm. high, with 1-2 linear bracts; heads 11-12 em. in diameter 
including rays; involucre densely short-pubescent, triseriate, the 
bracts little graduated, about 18 mm. long, tapering from an ovate | 
base, exceeding the disk; rays 24-33, oblong, subentire or faintly tri- 
dentate, 3.54.2 em. long, 6-12 mm. broad, about 11-nerved, pubescent 
on back chiefly along the veins; disk-corollas with slender tube and 
cylindric throat, glabrous except for the pubescent teeth, 6-7 mm. long; 
pales glandular-pubescent at apex, 11-14 mm. long, about 11-nerved; 
immature achene 6 mm. long, 2.5 mm. wide, appressed puberulent 
on body and margin or nearly glabrous, with two short ascending 
awns and a corona of short confluent squamellae; mature achene 
broadly obovate, 10 mm. long, 6.5 mm. broad, with blackish sparingly 
puberulent or glabrate body and broad geortans margin and 
ae ame crown, the smoothish awns 1 mm. lon 
Encelia grandiflora Jones, Proc. Calif. Acad. ser. 2. = 702 (1895), not 
E. grandiflora (Benth.) Hemsl. (1881). 
Enceliopsis grandiflora A. Nels. 1. c. (1909). 
Helianthella argophylla Coville, Contr. U. S. Nat. Herb. iv. 132 
(1893), not Gray. 
H. Covillei A. Nels. Bot. Gaz. xxxvii. 273 (1904). 
Specimens examined: CALIFORNIA: Panamint Cafion, alt. 610 m., 
3 May 1897, Jones 11855 (GN, and hb. Jones); banks of apparently 
calcareous clay, Hall Cafion, Panamint Mts., alt. 450 m., 18 April 
1891, Coville & Funston 698 (G).— This species and the next are found 
only where sodium chloride is abundant, on cliffs adjoining salt de- 
posits, but apparently never directly on salt flats (Jones, in litt.). 
++ ++ Achenes villous; rays 2 cm. long, 4 mm. wide. 
4, E. arcopuyiia (D. C. Eaton) A. Nels. Base as in the last; 
leaves in a thick tuft, oblong-obovate or rhombic-obovate, silvery- 
velutinous, acute at apex, tapering to a broadly margined base, 3- 
nerved, 3.5-7 cm. long, 1.1-3.2 em. wide, the petioles shorter; scapose 
peduncles 1 or 2, 2.5-3.7 dm. high, short-pubescent, bractless; heads 
4.5-7.5 em. in diameter including rays; involucre 2 cm. high, tri- 
seriate, the short-silky scales subulate-tipped, with broadly ovate 
base, exceeding the disk, the outer loose and reflexed; rays about 30, 
32 Jones, l. ec. 
