352 PROCEEDINGS OF THE AMERICAN ACADEMY. 
11-15 mm. long, the outer shorter; pales about 15 mm. long, faintly 
nerved, pubescent on the back and subherbaceous narrow tip; disk- 
corollas 8 mm. long, tube } length of throat; achenes 1 em. long, 
obovate, very villous, the callous margin emarginate at apex. 
Encelia nutans Eastw. Zoe ii. 230 (1891); Jones, Proc. Calif. Acad. 
ser. 2. v. 701 (1895). 
Enceliopsis nutans A. Nels. Bot. Gaz. xlvii. 433 (1909). 
Verbesina scaposa Jones, Zoe ii. 248 (1891), & Proc. Calif. Acad. 1. ¢. 
(1895). 
Specimens examined: Cotorapo: Grand Junction, May 1892, 
Alice Eastwood (GN °°); Uran: Green River, alt. 1340 m., 23 May 
1895, Jones 11859 (hb. Jones). Type material collected by Miss 
Eastwood on Orchard Mesa, Grand Junction, 17 May 1891. Ver- 
besina scaposa Jones was described from material collected in sandy 
deserts near Grand River, eastern Utah, at Cisco, 2 May 1890.— This 
species grows in very poor clay soil containing a little active alkali 
(sodium carbonate) in open deserts (Jones, in litt.). 
* * Heads radiate; _ densely white-pubescent. 
+ Heads anced a rays31 1-2.5cem. long; pubescence rather dull, not 
very; leaves mostly abt or roun 
. E.Nnuprcauuts (Gray) A. Nels. Caudex more or less branched 
from a thick woody root, the branches short and stout, woolly and 
covered with the thick crowded bases of former leaves; leaves tufted, 
ovate to orbicular, subacute to rounded at both ends, white with a 
dense fine simple pubescence of several-celled glandular-based hairs, 
2.5-6.5 em. long, 1-6.5 em. wide, on margined petioles one to three 
times their length; scapes 1.5-2.5 dm. high, pubescent like the leaves, 
usually bractless; heads 4-8 cm. in diameter including the rays; 
involucre densely pubescent like the leaves and stem, 3-seried, the 
scales slightly unequal, subulate-lanceolate from an ovate base, 
bluntish, 1-2 cm. long, equaling or barely surpassing the disk; rays 
about 20, glandular-pubescent on tube and back, tridentate, about 
11-nerved, 1-2.5 em. long, 2-6 mm. wide; disk-corollas 7 mm. long, 
with short tube and thick-cylindric throat, more or less glandular- 
pubescent; pales 12-15 mm. long, scarious, pubescent on back and 
tip and somewhat glandular, often laterally 1-toothed; mature 
achenes cuneate, 9 mm. long, 3.5 mm. wide, rather shortly silky- 
30 In plea of specimens F = Field Museum; G = Gray Herbarium; 
N = National Herbari 
31 Ligule measurements are taken exclusive of tube. 
