Review of the North American climbing species of Clematis, 
with compound leaves and thick or thickish erect sepals. 
A. Sepals of the ovoid or somewhat conical and compara- 
tively closed flower very thick, softly leathery, glabrous 
or almost so (not canescent) except the inflexed mar- 
gins, their tips not dilated nor conspicuously thin- 
margined ; styles wholly persistent in fruit and plumose 
throughout. 
1. C. Viorna, L., of the Atlantic States east of the 
Mississippi; figured only by Dillenius and in Jacquin, 
Kelogia, tab. 32, by the former under the good character 
“flore violaceo clauso.” The colour is usually of a dull 
reddish purple. 
2. C. cocoinza, Engelm. in Gray, Pl. Wright. vol. ii. p. 7, 
where I called it C. Viorna, var. coccinea. Carritre, in Rev. 
Hort. 1878, p. 10, has described and figured it under the 
quite erroneous name of C. Pitcheri, and it may have other 
-Names in cultivation. It is a native of Texas, and is 
known from C. Viorna by its scarlet-red flowers, glaucous 
foliage, and simpler as well as rounder and more reticu- 
lated leaflets. — 
B. Sepals less thick, pointed and nearly marginless, exter- 
nally canescent; styles wholly persistent and very 
plumose to the tip. 
3. C. reticutata, Walt. Native of the Southern Atlantic 
States east of the Mississippi. The Texan specimens 
referred to it do not belong to this species, which is well 
marked by the above characters, and by the excessive and 
prominent reticulation of the firm coriaceous leaves. The 
C. reticulata figured in Watson, Dendr. Brit., as Lindley 
has stated, appears to be C. Viticella. Perhaps it is that 
hybrid between C. Viticella and (. integrifolia which is 
known in the gardens under the name of (. Hendersonii. 
C. ovata, Pursh., of which the original specimens in Herb. 
Oxon. have leaves almost as reticulated as this when old, 
appears to be C. ochroleuca, Ait. 
C. Sepals moderately thick and more expanding; styles 
(in flower and fruit) either naked or silky-pubescent, 
