- 
26 RANUNCULACE2. CIMICIFUGA. 
ACTA. 
14 CIMICIFUGA L, Ameen. Acad. viii, 193 t. 4. 
- Tall perennial herbs with ample ternately compound leaves 
and small white flowers in paniculate racemes in summer. Sep- 
als 4-6, falling soon after the flower opens. Petals 1-8, or none, 
small, with short, claws. Stamens numerous. Follicles 1-8, 
many- seeded. 
Ceetihibeas T. &G. Fl. i, 36. Canescently pubescent or the pani- 
OQ. cle tomentose and glandular, 4-8 feet high; leaves ample; leaflets thin 2-4 
inches in diameter, 5-7 lobed, segments acute, coarsely cuspidate- 
UE Fcorrate: petals none: filaments equal: pistils 2-5 in the early 
flowers, only one in the later ones, glabrous or minutely glanda- 
lar; follicles sessile, 4 lines long, obtuse, 6-10 seeded: seeds terete 
transversely rugose. In woodlands Willamette valley to Puget Sound. 
C. laeciniata Watson Proc. Am. Acad. xx, 352. Glabrous or the pani- 
cle tomentose: 3-5 feet high: leaves ample, ternate, the divisions 3-parted 
or deeply 3-lobed, the acuminate segments ‘coarsely laciniate-toothed : pet- 
als usually present: filaments unequal: pistils 2-5 pubescent ; follicles stip- 
itate 4-5 lines long, 6--8 seeded: seeds flat linear, light brown, scaly. 
Lost Lake, north side of Mount Hood. Rare. 
~ + Fruit aone-celled, many-seeded berry. 
15 ACTA L. Gen. n. 644. 
Tall perennial herbs with alternate, triternately decompound 
leaves and small white flowers in short terminal racemes. Sep- 
als 5-6, nearly equal, petaloid, caducous. Petals 4-10, or none, 
less showy than the numerous white filaments. Carpel solitary, 
sessile, covered with a broad and obscurely 2-lobed depressed 
stigma, becoming a berry filled with smooth flattened seeds — 
packed horizontally in two rows. 
A. arguta Nutt. T. & G. Fl. i. 35. Stems 1-6 feet high from a fascicle 
of short branching roots, 1-3 leaved; leaves ternately or quinately decom- 
pound: leaflets ovate to oblong, often obscurely 3-lobed, acuminate, irregu- 
larly incised-dentate : racemes oblong, sometimes divided toward the base, 
loose: pedicels longer than the flowers,filiform,scarcely thickened in fruit: 
petals oblong, obtuse, shorter than the stamens: berries red or 
white subglobose. Common in forests from Cailfornia to Alaska and the 
Rocky Mountains. 
A. rubra Wild. Enum. 561. Stems about 2 feet high: leaves ter- 
nately decompound ; leaflets ovate, acuminate, 1-2 inches long, unequally 
and incisely serrate, the terminal one often 3-cleft: racemes broadly ovate 
or hemispherical: pedicels longer than the flowers, scarcely any thicker in 
fruit: sepals 4 greenish, ovate petals 3-10, rhombic-ovate, acute, shorter 
than the stamens: berries bright cherry-red, shining, suboyate. 
Craig Mountains, northern Idaho (Sandberg n. 235), to the Atlantic 
States and Canada. 
. Tribe 5.. Peoniex DC..Prod. i. 64. Sepals herbaceous, imbri- 
cated in the bud, persistent. Carpels few, many ovuled. 
16 PAXONIA Tourn. Inst. 273 t. 146. L. Gen. n. 678. 
Herbs or low shrubs with tuberous roots, alternate, triter- 
nately compound or divided leaves and large solitary flowers 
terminating the stems or branches. Sepals 5, strongly imbri- 
