10 RANUNCULACEiE. Clematis. 



13. C. cylindrica (Sims): peduncles 1-flowered ; flower cylindrical-cam- 

 panulate ; sepals membranaceo-coriaceous, acuminate, with the margin un- 

 dulate ; leaves membranaceous, pinnate ; leaflets ovate or ovate-lanceolate, 

 petiolulate; carpels with plumose tails. — Sims, hot. mag. t. 1160; Pursh, 

 Jl. 2. p. 385; Ell. sk. 2. p. 475 ; DC. prodr. 1. p. 7. (excl. syn. Michx.'^) 



0. Walteri: leaflets linear and linear-lanceolate.— C. Walteri, Pwrs/j,^. 

 2. p. 384; DC. prodr. l.p.l; Hook, in jour. hot. \.p. 86. 



North Carolina ! to Florida! and in Louisiana ! June-Aug.— Flower lar- 

 ger than in C. Viorna, nodding. Sepals dilated above and acuminate, bluish 

 purple. Leaflets mostly entire.— Pursh, who described his C. Walteri from 

 specimens in Walter's herbarium, was probably mistaken in supposing the 

 flower to be white. 



14. C. lineariloba (DC): peduncles 1-flowered; sepals very acute; 

 leaves pinnate, smooth ; leaflets entire or 3-parted; the segments linear, DC. 

 prodr. l.p.l; Deless. ic. 1. t. 3. 



South Carolina, Fraser.— Stem slender, glabrous. Leaflets 3-4 paurs; 

 lobes aU linear, scarcely 2-3 lines wide. Peduncles shorter than the leaves. 

 Petals an inch long, about twice the length of the stamens. DC— A doubtful 

 species ; probably only C. cylindrica /?. 



15. C. reticulata (Walt.): peduncles 1-flowered; sepals rather coriace- 

 ous ; leaves pinnate ; leaflets 4 pairs, oval, undivided or lobed, obtuse, rigidly 

 coriaceous, conspicuously reticulated on both sides, glabrous ; carpels with 

 plumose tafls.- HV/7^. Car. p. 156; Pursh, Ji. 2. p. 385; DC. prodr. l.p.l; 

 Ell. sk. 2. p. 47; Mich.v. ! fl. I. p. 318. 



S. Carolina, Gecwgia ! and Florida ! May-Aug.— Leaflets aU petiolulate, 

 1-U inch long, undivided or variously lobed ; the lowest pair 3-parted, some- 

 times rather acute and mucronate. Peduncles longer than the leaves. 

 Flower as large as in C. crispa. Sepals dull purple, ovate-lanceolate, veltety 

 externally. Tail of the carpels long. 



16. C. crispa (Linn.): peduncles 1-flowered, shorter than the leaves ; 

 leaves pinnate, ternate, or 3-lobed ; leaflets very acute ; sepals thick and cori- 

 aceous, with the apex reflexed, transversely undulated and crisped on the 

 margin, twice as long as the stamens ; carpels Avith a short, thick, naked (or 

 pubescent) tail.— Z>C. prodr. I. p. 9; Sims, hot. mag. t. 1892; Ell. sk. 2. 

 p. 49; Pursh, fl. 2. p. 384; Mich.v.! fl. 1. j). 318. 



Virginia to Florida ! and west to Louisiana ! May.— Leaves glabrous, or 

 slightly hairy. Flowers a third smaUer than in C. Viorna, bright purple. 

 Tail of the carpels thick and rigid, about half an inch long. 



17. C. Pitcheri : peduncles 1-flowered ; leaves pinnate, coriaceous, retic- 

 ulated ; leaflets 2-4 pairs, ovate, mostly obtuse, undivided or 3-lobed ; branch 

 leaves simple, ovate ; sepals coriaceous, a little longer than the stamens ; 

 carpels with a short pubescent tad. 



On the Red River, Arkansas, Dr. Pitcher! NuttalU— heaves gla- 

 brous or slightly hairy beneath; the lowest pair 3-lobed, often subcordate. 

 Sepals purple, about three-fourths of an inch long, reflexed at the summit, 

 even on the margin. Tails of the carpels half an inch long, the lower part 

 - pubescent and almost plumose. 



§2. Tnvohocre none : sepals 4; petals several, minute.— ArRkCEUE, DC. 



18. C. verticillaris (DC): peduncles 1-flowered; leaves verticfllate in 

 fours, ternate ; leaflets petiolulate, ovate, acuminate, subcordate, entire or 

 sparingly toothed ; petals acute.— Z>C. prorfr. 1. p. 10; Hook. Jl. Boi\-Am. 

 1. p. 2. Atragene Americana, -S/ms, bat. mag. t. 887; Pursh, Ji. 2. p. 384. 



Mountains and rocky places, British America, north to lat. 54°. and west 

 to the Rocky Mountains and N. W. Coast ; Vermont ! to North Carolina ! 



