4 RANUNCULACEJE. Clematis. 



1. CL£IMATIS, L. (Name in Dioscorides, from KXi]fi.a, a twig, early 

 applied to this genus.) — Perennial herbs or more or less woody climb"e)-s (climb- 

 ing by incurvation and gnisping of leafstalks), of wide distribution, the large- 

 flowered species hermaphrodite. Sepals in native plants almost always 4. Styles 

 elongated, either feathery or naked iu fruit. The cultivated species largely hy- 

 bridized. Gen. DO. 4G0; DC. Syst. i. 131. Clemutis «fe Afro gene, L. Gen. ed.5. 



§ 1. FlImmula, DC, partly. Flowers comparatively small and commonly 

 cymose-paniculate, white or whitish: sepals petaloid and thin, widely spreading: 

 no petals: persistent styles in fruit forming long plumose tails: anthers blunt, 

 mostly short. 



* Virgin's Bowkk. Half-wooily climbers ; the flowering shoots from uaked buds, dia;- 



cious; sterile flowers more showy, having bright white stamens; fertile with a series of 



sterile subnlat« or filiform filaments bearing rudimentary or non-polliuiferous anthers. — 



All the American species and more are referred to C. dioica, L., by Kuntze, Verh. Bot. 



Brandenburg, 1885, 102. 



■*-- Panicles floribund, aud peduncles short : leaves once or twice ternate or quinate : leaflets 



ovate or subcordate, acute or acuminate, mostly incisely few-lobed or toothed: sepals 



about a third inch and mature fruit-tails an inch and a half long. 



C. Virginiana, L. (Virgin's Bower.) Almost glabrous: leaves simply .3-foliolate (very 



rarelv pinnately .5 foliolate) ; leaflets thin, ovate and subcordate (2 or 3 inches h)ng), incisely 



few-toothed or somewhat lohed. — Amcen. Acad. iv. 275, &, Spec. ed. 2, ii. 766 ; V. W. Wats. 



Dendr. t. 74; Sprague & Goodale, Wild Flowers, 61, t. 12. V. Virginicu, I'ursh, Fl. ii. 384. 



C. rordifoli'i, Ma-nch, Meth. Suppl. 104. C. cordata, Pursh, 1. c, unusual state with some 



5-foliolate leaves. — Low grounds, Nova Scotia to Upper Georgia, west to Minnesota and 



Winnipeg ; fl. summer. 



C. Catesbyana, Pprsh. Pubescent or glabrate: leaves twice ternately divided, and leaflets 



(inch or tv.o long) commonly 3-lobed, otherwise entire or very few-toothed, occasionally a 



leaf only quinate by the confluence of lateral leaflets ; only uppermost simply 3-foliolate. — Fl. 



ii. 736 ; DC. Syst. i. 142. C. holosericea, Pursh, Fl. ii. 384, founded on an upper leaf ot three 



leaflets and a heatl of fruit taken from herb. Walter, most probably of this species. — Dry 



ground along and near the coast, S. Carolina to Florida and Mississippi ; i fl. late summer, in 



cult, northward not before October. 



C. Plukenetii, DC. Syst. i. 153, which has been referred here, founded on a specimen from 

 Catesby, is obscure, and probably not of United States. 



C.* ligusticifolia, Nutt. Pubescent or nearly glabrous : leaves pinnately 5-7-foliolate, or 

 sometimes lowest pair of leaflets again trisected : leaflets of firmer texture than in the pre- 

 ceding, from cordate-ovate to oblong-lanceolate, from 3-lobed and incised to few-toothed or 

 nearly entire, also very variable in size: carpels numerous, densely silky -pubescent with 

 long straight hairs : fruiting heads an inch and a half or two inches in diameter including 

 the tails. — Nutt. in Torr. & Gray, Fl. i. 9; Brew. & Wats. Bot. Calif, i. 3. — Saskatchewan 

 to New Mexico,'^ to Brit. Columbia and S. California. Kuns into many forms : vars. breui- 

 foUa, Nutt., hrncteata, TOrr., Californica, Wats., &c., which are not distinctly definable.* 

 C* Suksdorfii, Bobinson, n. sp. Habit and foliage of the preceding : leaves quinate, 

 glabrous ; leaflets an inch to an inch and a half long : sepals widely spreading or reflexed in 

 anthesis, velvety pubescent upon the outer surface : heads of fruit much smaller aud fewer- 



1 Doubtful specimens from S. Missonri, Biish, make the distinctions between this and the preced- 

 ing obscure. 



2 E.istward to Greene Co., Missouri, Bush. 



8 A form with perfect flowers is reported by M. E. Jones, Bull. Torr. Club, ix. 12.''>, and another 

 with exceptionally copiou.s production of axillary shoots in the inflorescence has been characterized as 

 \a.r. periilafa, by Freyn, Deutsche Bot. Monat.s.'^chr. viii. 75. Dr. Gray's description of C. ligustici- 

 fulia lias been slightly amplified to exclude more clearly the next species. 



