jo : RANUNCULACEAE. {Vou. II. 
8. Clematis ovata Pursh. Erect Moun- 
tain Clematis. (Fig. 1589.) 
Clematis ovata Pursh, Fl. Am. Sept. 736. 1814. 
Similar to the preceding species, stems stiff, 
1°-2° tall, pubescent when young, becoming 
nearly glabrous when old. Leaves ovate, entire, 
1'4’-2’ long, strongly reticulate-veined and 
nearly glabrous when mature; flowers solitary at 
the ends of the stem or branches, purple, nod- 
ding, nearly 1’ long; achenes distinctly oblique, 
persistent styles plumose throughout, the plumes 
white or slightly dingy, 1/-1%4’ long. 
Kate’s Mountain, White Sulphur Springs, W. Va 
Apparently first collected on Negro’s Head, a moun- 
tain of the Blue Ridge in South Carolina or Georgia. 
May-June. 
g- Clematis Fremontii S. Wats. Fre- 
mont’s Clematis. (Fig. 1590. ) 
ELS Fremontti S, Wats. Proc. Am. Acad. 10: 339 
1875. 
Clematis ochroleuca var. Fremontit J. F. James, Journ. 
Cine. Soc. Nat. Hist. 6: 120. 1883. 
Stout, erect, 6’-15’ high, the stem villous-pubes- 
cent, especially at the nodes, woody at the base, sim- 
ple or branched. Leavessimple, sessile, coriaceous, 
conspicuously reticulated, glabrous except on the 
veins beneath, broadly ovate, obtuse or acutish, entire 
or sparingly toothed; flowers terminal, nodding; 
calyx purple, 1’ long; sepals thick, tomentose on 
the margins, their tips recurved; head of fruit 1’ in 
diameter or more, erect; persistent styles about 14’ 
long, silky below, naked above. 
Prairies,’ Kansas and Missouri. Rare and local. 
April-May. 
10. Clematis Scottii Porter. Scott’s Clematis. (Fig. 1591.) 
, Clematis Scottti Porter, in Porter & Coulter, Fl. 
Colo. 1. 1874. 
Clematis Douglasti var. Scottii Coulter, Man. Bot. 
Rocky Mts. 3. 1885. 
Somewhat villous when young, nearly gla- 
brous when old, stems erect, simple, or nearly so, 
or branched from the base, 10’-2° tall. Leaves 
petioled, the upper pinnate or bipinnate, 3/—6’ 
long, their segments lanceolate, oblong or ovate, 
entire or few-toothed, stalked, acuminate or 
acute at the apex, narrowed at the base, 6’/-18/’ 
long; lower leaves sometimes entire, or pinnately 
cleft, smaller than the upper; flowers solitary, 
terminal or also axillary, long-peduncled, nod- 
ding, nearly 1’ long, purple; sepals ovate-lance- 
olate, thick; persistent styles plumose through- 
out, 1’ long or more, the plumes brown. 
In dry soil, South Dakota to Nebraska, Col- 
orado, and Idaho. May-July. 
