Oeder 1.— RANTTNCULACEjE. 201 



1 C. verticillari3 DC. Stem ascending trees 15 ft. by means of its twisting 

 petioles. At each node is a whorl (arising from two buds) of four teruate 

 leaves, and two large purple flowers. Leaflets aoufe, 1—2' by ^1', ovate 

 slightly notched. Sepals lanceolate, acute, 15" by 5". Filaments about 24* 

 outer ones (petals ?) dilated, spatulate, tipped with imperfect anthers. — A hand- 

 some climber in highland woods, Vt. (Dr. Phelps) to N. Car. W. to the Eocky Mts. 

 May, Jn. (Atragene Americana Sims). 



2 C. Virginiana L. I/vs. ternate ; Ifts. smooth, hied, and cut-dentate. — A common, 

 hardy climber in hedges and thickets. Can. to Ga. and the Miss. Stem 8-15 f. in 

 length, supporting itself on fences and brushwood by means of the long petioles. 

 Leaflets 2 — 3' by l\ — 2', with mucrouate teeth. Sepals 4, white, oblong-oi)Ovate, 

 obtuse. Stamens 28 — 36. Panicles large, axillary, dichotomous. Fruit furnished 

 with long, plumous tails (caudse), appearing in large, downy tufts. Aug.f 



3 C. holoserioea Ph. Lvs. ternate ; Ifts. pubescent both sides, entire, oblong- 

 lanceolate. — In Carolina. Plant climbing, downy or silky in all its parts. 

 Panicles corymbous, triohotomous, few flowered. Flowers dioecious, small, white; 

 the linear petals longer than the stamens. Achenia long-plumed. 



4 C. Catesbyaua Ph. Lvs. biternate ; Ifts. ovate, small, mostly 3-lobed, the 

 lobes entire. — ^In Georgia. Plant climbing, minutely pubescent. Flowers in axil- 

 lary, divaricately forked cymes, small, mostly ? J . Sepals linear oblong. Fila- 

 ments in the ? flowers, linear-margined, without anthers. Achenia short- 

 plumed. 



5 C cylindrica Sims. Lvs. ternate, pinnate, or decompound; Ifts. ovate (very 

 variable), acute, smooth, membranous. — Virginia to Ga. and La. Stems climbing, 

 but not extensively, smooth. Leaves exceedingly various. Leaflets 3-16, glab- 

 rous, simple, often lobed or 3-pirted, rendering the leaf decompound. Peduncle 

 terminal, bearing a large, nodding, bell-shaped, bluish purple flower. Achouia 

 with short (6 — 9") pubescent tails. Apr. May. 



p. crispa. Lfts. large (2' — 3'), broadly-ovate, obtuse or subcordate at base. 



Sepals above much dilated and crisped, spreading or reflexed. — Ga. Varying 



imperceptibly into a. (0. crispa L.) 

 ■y. WdUeri. Slender throughout. Leaflets 3 — 5, very narrow, acute at each end. 



Sepals narrow and scarcely wavy. Stamens sometimes sterile. — Ga. Perhaps 



distinct. (B. Wdlteri, Ph.) 

 S. linearildba. Lfts. about 15, lanoe-linear, acute or acuminate at each end. 



Flower more or less oylindraoeous below. — Quincy, Fla., La. (C. hneariloba, 



DC.) 



6 C. retiouldta Walt. Leaves pinnate or ternate.. Lfts. obtuse at each end, at 

 length rigid and prominently net-veined. — Fla. Lfts. 3 — 6, stalked as in the other 

 species, oblong, ovate or oval, entire, simple or lobed. Flower terminal, nodding, 

 beU-shaped, pale-purple, much resembling that of No 5. Sepals 1 — 1^' long. 

 Achenia with long silky tails. Apr. 



7 C. Viorna L. Leather-Flower. Lfts. ovate, acute, smooth. Sepals ovate, thick 

 and leathery ; ach. with long plumous tails. — Woods, Ohio to Ga. Stems 10 — 151 

 in length, striate. Lvs. pinnate, those of the branches (bracts) simple, ovate, 

 subsessile. Lfts. ovate or lance-ovate, simple or 3-lobed. Flower terminal, nod- 

 ding, dark purple. Sepals ovate-lanceolate, 1' long, cuspidate point reflexed. 

 Tails 1-J' long. Jn. Jl. 



8 C. Pitoheri T & G. Lfts. rough with prominent veins, coriaceous. Sepais 

 lance-ovate, thick, achenia with short pubescent tails. — Iowa, 111. to Ark. Leaves 

 pinnate, those of the peduncles simple, subsessile. Leaflets ovate, acute or obtuse, 

 often subcordate at base. Sepals of the nodding flower ovate-lanceolate, dull 

 purple, 8 — 10" in length, the cuspidate point reflexed. Jn. (Hardly distinct 

 from the preceding.) 



9 C. oohroleCioa Ait. Lvs. simple, ovate, silky, pubescent beneath. — Mts. and 

 river banks, N". Y. to Ga. Rare; stem 12—18' high, sericious. Leaves sessile, 

 entire, simple, 2-4' long, f as wide, with prominent veins, upper surface at length 

 smooth. Flower terminal, nodding, ovate-campanulate. Sepals silky outside, 

 yellowish-white within. Plumes of the fruit long, straw-colored. May. 



