372 PROCEEDINGS OF THE AMERICAN ACADEMY. 
rather few, 5.5 mm. long, pubescent on tube and teeth; pales 8 mm. 
long, pubescent; immature achene 2.5 mm. long, villous on the 
margin and slightly pubescent on the sides, bearing 2 upwardly 
pubescent awns about its own length. 
Encelia angustifolia Greenm. Proc. Am. Acad. xxxix. 110 (1903). 
Specimen examined: Territory oF Tepic: in the Sierra Madre, 
13 Aug. 1897, Rose 3453 (G, TYPE COLLECTION). 
+ + Scapose; head solitary, terminal; leaves puberulent both sides. 
13. E. scaposa Gray. Herbaceous perennial, simple and erect, 
3.5 dm. high, the leaves all clustered at the base, the monocephalous 
scape naked except for two linear bracts; the lowest leaves scalelike; 
leaves linear, 3.5-8.5 cm. long, 1.5-4 mm. wide, attenuate, subsessile, 
with whitish cartilaginous margin and tip, rough-puberulent both 
sides; scape puberulent especially above, striate, whitish; head 1 cm. 
high, 2 cm. wide excluding the rays; scales linear-lanceolate, subequal, 
about 2-rowed, rather loose, white-hispid on the back; rays pubescent 
on tube and back, apparently rather numerous, oval, 15 mm. long, 
6 mm. wide; disk-corollas 5 mm. long, pubescent on teeth and short 
tube; pales 10 mm. long, rather narrow, about 9-nerved, pubescent 
above; immature achenes 4.5 mm. long, pubescent on the sides, 
villous on margin and top, as are the two awns which are about as 
ong. 
Simsia? (Geraea) scaposa Gray, Pl. Wright. ii. 88 (1853). 
Encelia scaposa Gray, Proc. Am. Acad. viii. 657 (1873). 
Specimen examined: New Mexico: stony hills between the Mim- 
bras and the Rio Grande, Oct. 1851, C. Wright (G, TYPE COLLECTION). 
+ + + Heads numerous, panicled; plant resinous. 
14. E. srenopHyiia Greene. Perennial, the stems several and 
erect from a somewhat branched woody base bearing the scars of 
former leaves, more or less glutinous; leaves mostly crowded toward 
the bases of the stems, linear, 4.5-8 cm. long, 1-2 mm. wide, mucronu- 
late, somewhat fleshy, glutinous, slightly hairy along the margin, the 
edges more or less revolute; heads corymbose-panicled toward tip of 
stem, on peduncles 1-3 em. long; disk 8 mm. high, 7-11 mm. wide; 
involucre 3.5-4 mm. high, the scales lance-ovate, about 3-seriate, 
somewhat unequal, resinous and slightly ciliate, rather strongly 
ribbed; rays about 6, oval, entire, resin-dotted on tube and back, 
5.5 mm. long; disk-corollas 4.5 mm. long, resin-dotted, the throat 
broadly oblong; pales 7.5-8.3 mm. long, rounded at tip, resin-dotted; 
