126 MISSOURI BOTANICAL GARDEN. 
== = Stem leaves elliptical lanceolate, smooth or pubescent; stems 
slender and often sinuous. 
E. scuizotopa Engelm. Proc. Am. Acad. 5:173. 1861; 
Boiss. DC. Prod. 157: 148. 1862. EH. incisa Engelm. 
Ives, Rept. on Colorado River of the West 4:27. 
1861; Watson, Bot. Calif. 2:75. 1880. 
Stems slender, ascending or erect, sometimes sinuous, 
1.5 to 3.5 dm. high, many branches at the base, glaucous 
green, sterile or fertile branches below the umbel occa- 
sional; umbel 3 or sometimes 4-rayed; rays 1.5 to 2.5 em. 
long, 2 to 3 times dichotomously branched; stem leaves 
broad oblanceolate below to ovate above, with petioles 1 to 
3 mm. long, entire, smooth or pubescent with short hairs, 
spreading, 4 to 9 mm. wide, 10 to 14 mm. long; umbel 
leaves wider, ovate to broad subcordate, or the base trun- 
cate; floral leaves broad ovate, mucronate, the base trun- 
cate, pubescent above or only at the base, 6 to 10 mm. 
wide, 4 to 8 mm. long; involucres large, whitish, 3 or 
more mm. high, 2 mm. wide, almost smooth to very pubes- 
cent inside; lobes .5 to 1mm. long, lobed, dentate and 
often glandular at the apex; glands semicircular, truncate, 
irregularly dentate or short horned, stipitate, 1.5 to 2 mm. 
wide, over 1 mm. long, in dried plants dark brown when 
young, brownish yellow when older; bracts slender, entire 
or divided at the apex, usually attached to the involucre 
at the base; stamens many; capsule oblong ovoid, cocci 
rotund, sulci deep, 4 mm. wide, 5 mm. high; styles 
1 mm. long, short bifid at apex, almost free at base, short 
clavate stigmatose, seeds oblong cylindrical, irregularly 
shallow pitted, 2 to 2.5 mm. long, 1.5 mm. wide; caruncle 
small, conical, one-half as broad as the seed. — Desert 
regions of southeast California and Arizona. — Plate 42. 
Specimens examined from California (Jones, Panamint Cafion, 1897; 
Coville & Funston, Panamint Mts., 629, 1891, low and much branched) ; 
Arizona (Jones, Hackberry, 4728, 1884; Newberry, Railroad Pass, Long 
Valley, 1899; Smart, Massatzal Mts., 160, 1867). 
42 
