RANUNCULACEAE. 



[Vor.. 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, 

 i-2 tall, pubescent when young, becoming 

 nearly glabrous when old. Leaves ovate, entire, 

 I %'-2 f long, strongly reticulate-veined and 

 nearly glabrous when mature ; flowers solitary at 

 the ends of the stem or branches, purple, nod- 

 ding, nearly i' long; achenes distinctly oblique, 

 persistent styles plumose throughout, the plumes 

 white or slightly dingy, i'-ift' 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. 





9. Clematis Fremontii S. Wats. Fre- 

 mont's Clematis. (Fig. 1590.) 



Clematis Fremontii S. Wats. Proc. Am. Acad. 10: 339 



rtH 

 Clematis ochroleuca var. Fremont ii J. K. James, Journ. 



Cine. Soc. Nat. Hist. 6: 120. 1883. 



Stout, erect, 6'-i$' high, the stem villous-pubes- 

 cent, especially at the nodes, woody at the base, sim- 

 ple or branched. Leaves simple, sessile, coriaceous, 

 conspicuously reticulated, glabrous except on the 

 veins beneath, broadly ovate, obtuse or acutish, entire 

 or sparingly toothed; flowers terminal, nodding; 

 calyx purple, i' long; sepals thick, tomentose on 

 the margins, their tips recurved; head of fruit i' in 

 diameter or more, erect; persistent styles about ft' 

 long, silky below, naked above. 



Prairies, Kansas and Missouri. Rare and local. 

 April-May. 



10. Clematis Scottii Porter. Scott's Clematis. (Fig. i59 T -) 



Fl. 



Clematis Scottii Porter, in Porter & Coulter, 



Colo. i. 1874. 

 Clematis />,nnflasii 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, io / -2 tall. Leaves 

 petioled, the upper pinnate or bipinnate, $'-6' 

 long, their segments lanceolate, oblong or ovate, 

 entire or few-toothed, stalked, acuminate or 

 acute at the apex, narrowed at the base, 6"-i8" 

 long; lower leaves sometimes entire, or pinnately 

 cleft, smaller than the upper; flowers solitary, 

 terminal or also axillary, long-peduncled, nod- 

 ding, nearly i' long, purple; sepals ovate-lance- 

 olate, thick; persistent styles plumose through- 

 out, i' long or more, the plumes brown. 



In dry soil, South Dakota to Nebraska, Col- 

 orado, and Idaho. May-July. 



