EANUNCULACE^, (CROWFOOT FAMILV.) 3 



1. CLEMATIS, L. Virgin's Bower. 



^Sepals 4, petal-like, valvate or with incurved margins in the bud, decidu- 

 ous. Petals none. Stamens indefinite. Ovaries numerous, capitate, 1-ovuled, 

 forming acheuia in fruit, with the persistent styles in the form of long, mostly 

 plumose tails. Seed suspended. — Perennial herbs or woody vines, with op- 

 posite entire or divided leaves, and single or cymose perfect or polygamous 

 flowers. 



§ 1. Flowers solitari) ; outer stamens petal-like, sterile; huds scaly. — Atkagene. 



1. C. verticillaris, DC. Stem woody, climbing; leaves ternate, the 

 stalked leaflets cordate-ovate ; sepals ovate-lanceolate, spreading, bright 

 purple, 1'- U' long; sterile stamens spatulate ; tails of the achenia plumose. 

 (Atragene Americana, Sims.) — Mountains of N. Carolina. April -]\Iay. 



§ 2. Sterile stamens none ; buds not scuhj. — Clematis. 



* Flowers solitarij, perfect, nodding ; sepals thick, valvate ; stems herbaceous. 



-(— Stems erect, mostlii simple. 



2. C. OChroleuca, Ait. Villous or silky-pubescent, rarely glabrous; 

 stems rigid, 1° liigli ; leaves ovate or roundish, entire, reticulate, glabrate 

 above; flower yellowish, 1' long ; tails of the villous achenia plumose. (C. 

 ovata, Pursh, the smooth form.) — Rocky woods in the upper districts. 

 May- June. 



3. C. Baldwinii, Torr. & Gray. Stems slender, 1° - li° high, smoothish ; 

 leaves lanceolate or oblong, entire or three-lobed ; peduncles 8' - 1 0' long ; 

 flower purple ; tails of the achenia 2' - 3' long, plumose. — S. Florida. 



•(— H— Stems climbing ; leaves pinnately divided. 



4. C. erispa, L. (Blub Jessamine.) Glabrescent ; leaflets 3-9, thin, 

 ovate or oblong, lobed or entire, acute, or (in var. Walter!, Torr. Sj- Gray) lance- 

 olate or linear ; calyx l'-2' long, pale purple ; sepals recurved or revolute and 

 wavy-margined above the middle ; tails of the achenia stout, pubescent. — 

 Marshes and wet banks, middle and lower districts. May - June. 



5. C. Viorna, L. (Le.\ther-Floaver.) Smoothish; leaflets 5-7, thin, 

 oval or ol)long-ovate, lobed or entire; calyx V long, ovate, reddish brown: 

 sepals tapering into a short recurved point ; tails of the achenia plumose. — 

 Woods and along rivers, rare in the lower districts. May- July. 



6. C. reticulata, Walt. Smooth ; leaflets 7-9, coriaceous, oval, mostly 

 entire, strongly reticulated ; calyx ovate, purple ; sepals spreading at the 

 point; tails of the achenia long and slender, plumose. — Dry sandy soil, 

 chiefly in lower districts. May - July. 



* * Flowers ci/mose, poli/gamo-diacious ; sepals tliin, spreading ; stems icoodij, 



climbing ; leaves ternately divided ; tails of the achenia plumose. 



7. C. Virginiana, L. (Virgin's Bower.) Glabrate ; leaves ternate, the 

 oblong or cordate-ovate leaflets 2' - 3' long, lobed or toothed ; cymes axillary, 

 trichotomous, many-flowered ; sepals oblong, Y long, white or yellowish. — 

 Eiver banks, chiefly in the upper districts. June - July. 



