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It grows on a dry, slaty hillside, in low, crowded clumps, often 
as many as twenty stems growing from a lignous base and matted 
mass of lignous roots. The stems, leaves and petioles are pubes- 
cent with weak, matted, silky hairs, becoming more glabrous with 
age, the peduncle and petioles retaining more pubescence than 
the remaining portion of the plant; the leaves ovate, sparingly 
pubescent with few, weak, silvery hairs, becoming glabrous and 
strongly reticulate with age, sessile or very short petioled, entire or 
rarely with a few teeth. The flower is 114-214 cm. long, densely 
tomentose on the exterior, violet purple inside, the ripe plumose 
tails of the achenes greyish or creamy white. 
Clematis ovata differs mainly from C. ochroleuca in its smaller 
more slender habit, nearly glabrous leaves, shorter petioles, smaller 
flowers and the much lighter color of its fruit, though whether the 
latter character is a constant one remains to be seen when more 
material of C. ovata has been collected and studied. 
Clematis ochroleuca, Ait. Roanoke, alt. 1,000 ft. 
A particularly vigorous form of this interesting plant. It grew 
in great profusion on a dry hillside and for a distance of half a 
mile or more very close to the town, and the locality will doubt- 
less soon share the fate of that of C. Addisonii. 
The majority of the many plants noted were remarkable for 
the lobing of their leaves, which in some cases were 3-5-cleft 
or parted nearly to the base. The flowers were about 3 cm. 
long, often with 5—6 sepals, very densely tomentose and cream or 
yellowish white on the outer surface; the interior of the sepals 
cream white or streaked with bluish purple, or entirely bluish-pur- 
ple with a whitish margin. A few plants were slender and less 
vigorous, with more narrowly ovate leaves and distinctly purple 
flowers, and in leaf characters approaching C. ovata. 
Clematis Viorna, L. Banks of the Middle Fork of the Holston, 
Marion, alt. 2,100 ft. Slopes White Rock Mt., alt. 4,200 ft. 
Clematis Virginiana, L. Hog-trough Creek, base of Iron Mts., 
alt. 2,600 ft. 
Thalictrum clavatum, D. C. Staley Creek, alt. 2,200 ft. Slopes 
and summit of White Top Mt., alt. 2,600-5,675 ft. Damp 
ledges of cliffs on Farmer Mt., alt. 2,300 ft. 
