RANUNCULACEAE 439 
boidal or nearly orbicular, stout, 6-7 mm. long, more or less inequilateral, thick-margined : 
persistent styles plumose, 2.5-3 em. long. [Clematis flaccida Small. ] 
In thickets, Kentucky and Tennessee. Spring. 
9. Viorna Viórna (L.) Small. A vine, climbing to the height of 3 m. or more. 
Leaves numerous, deep green; blades mostly pinnate ; leaflets glabrous, entire, lobed or 
3-foliolate, the uppermost and lowest leaves often entire : calyx ovoid-campanulate, purple : 
sepals exceedingly thick : flowers solitary, nodding: persistent styles plumose throughout, 
2.5 cm. long or more, brownish. [Clematis Viorna L. ] à 
In woods, southern Pennsylvania to Ohio, West Virginia, Georgia and Alabama. Spring and 
summer. LEATHER-FLOWER.  VASE-VINE. 
10. Viorna glaucophylla Small. A showy bright green vine, the stem rather 
slender, 2-5 m. long, climbing over bushes and trees, nearly simple, dark red, furrowed, 
much enlarged at the nodes. Leaves ovate, 3-10 cm. long, thickish, acute, often apiculate or 
acuminate, entire, 3-lobed or 3-foliolate, often with conspicuous white nerves above, promi- 
nently nerved and glaucous beneath, cordate or subcordate ; bracts leaf-like with petioles 1 
cm. long, the nerves gradually diverging from the midrib: calyx reddish purple, glossy, 
2-2.5 cm. long, thick, conic-ovoid : sepals lanceolate, acuminate, the tips very slightly 
spreading : achenes suborbicular, 6-8 mm. in diameter, puberulent, abruptly narrowed at 
both ends, each with an orbicular impression in the middle, sometimes slightly inequi- 
lateral: plumose style erect or slightly oblique, 5-6 em. long, tawny, lustrous, the hairs 
spreading. [Clematis glaucophylla Small. ] 
In river valleys, Kentucky to North Carolina, Florida and Alabama. Spring and early summer. 
. 11. Viorna Addisdnii (Britton) Small. A shruby or stocky vine, 3-10 dm. long, 
simple or often branched, glaucous and glabrous. Lower leaf-blades simple, entire or 
1-4-lobed, obtuse, deep bluish green above, glaucous beneath, sessile, clasping, 5-10 cm. 
long: upper leaf-blades pinnate, or sometimes simple, tendril-bearing ; leaflets 2-4, ovate, 
sessile : flowers solitary, terminal and axillary, purplish, nodding : calyx ovoid, 18-30 mm. 
long, contracted near the summit: sepals thick, lanceolate, acute, their tips recurved : 
stamens numerous, pubescent above : achenes flat, nearly orbicular, silky-pubescent : per- 
sistent styles 2.5-3 cm. long, brown-plumose throughout. [Clematis Addisonii Britton. ] 
On river banks, Virginia to North Carolina and Tennessee. Spring. 
12. Viorna ochroleüca (Ait.) Small. An erect plant, 3-6 dm. tall, sometimes 
woody at the base, with silky-hairy foliage. Leaf-blades sessile, ovate, obtuse, glabrous 
and reticulated above, silky beneath, entire or occasionally lobed, mucronate: flower ter- 
minal, nodding, 2 cm. long: calyx cylindraceous, green : sepals thick, very silky without, 
their tips recurved: head of fruit erect: achenes scarcely oblique: persistent styles erect, 
yellowish brown, plumose throughout, 2.5-5 cm. long. [Clematis ochroleuca Ait. ] 
In sandy soil, Staten Island, New York and Pennsylvania to Georgia. Spring. 
13. Viorna ovata (Pursh) Small. Similar to the next preceding species in habit, 
the stems 2-6 dm. tall, pubescent when young, becoming nearly glabrous when old. Leaf- 
blades ovate, entire, 3-6 cm. long, strongly reticulate-veined and nearly glabrous when 
mature: flowers solitary at the ends of the stem or branches: calyx purple, nodding, 2.5 
em. long: achenes distinctly oblique : persistent styles nearly horizontal, plumose through- 
out, the plumes white or slightly dingy, 2.5-4 cm. long. [Clematis ovata Pursh. ] 
In dry soil, Kate's n ; irgi llect nN '$ Head, a 
mountain oe e e Sih Cea cae ggg a coveted om Neg 
14. Viorna Baldwínii (T. & G.) Small. An erect, simple or sparingly branched 
lant, with a more or less woody base and glabrate foliage. Leaf-blades various, the 
ower ones linear to lanceolate or oblong, 3-10 em. long, apiculate or rarely acute, sessile, 
the upper ones entire, or 3-cleft or 3-parted : peduncles 2-4 dm. long, strict: flower nod- 
ding, solitary: calyx 2-3 cm, long, purple or paler, suggesting that of V. crispa: sepals 
linear-lanceolate, spreading or recurved from above the middle: head of fruit conspicuous : 
achenes elliptic or ovate-elliptic, more or less rhomboidal : persistent styles very plumose, 
6-10 cm. long. [Clematis Baldwinii T. & G.] 
In pine lands or hammocks, peninsular Florida. Spring to fall. PINE HYACINTH. 
18. ATRÁGENE L. 
Perennial climbing vines, with glabrous or nearly glabrous foliage. Leaves opposite : 
blades petioled, compound. Flowers large, showy, peduncled, solitary in the axils or at 
the ends of the branches. Sepals very large, petal-like, mostly membranous and promi- 
nently veined. Petals small, spatulate. Stamens very numerous, erect, the outer filaments 
more or less petal-like. Styles very long, persistent, plumose at maturity. BELL RUE. 
