168 Ranunculaceae 
CLEMATIS CLEMATIS 
Perennial, more or less woody, ther climbing vines or else erect or “ascending 
herbs. Leaves opposite, simple or compound, entire or lobed; compounding pinnate or 
ternate; petioles slender, serving as tendrils. Sepals 4—5, petal-like. Petals none or 
shorter than the sepals. Stamens many. Akenes many ; styles long, persistent, plumose 
or silky or naked (not ours). (Gk. klema—a tendril; the petioles coil tendril-like.) 
A. Herbs, erect, 
B. Petiolules all straight; leaf-segments linear to lanceolate. F. (C. hirsutissima.) 
C. douglasii Hook. (Sugar-bowls) 
BB.  Petiolules of some of the leaflets contorted as if for climbing; leaf-segments ob- 
long to ovate-lanceolate. E. ©, scottij Port. (Scott’s Clematis) 
AA. Shrubby, climbing vines. 
C. Flowers white, cymose-paniculate; sepals 8—13 mm. long; leaves pinnately 
5—7-foliolate. 
D.  Akenes silky-pubescent with straight hairs. E. (C. brevifolia.) 
C. heusticifolia, Nutt. (Virgin Bower) 
DD. Akenes woolly-pubescent with crinkly hairs. E. 
C. suksdorfii Rob. 
CC. Flowers blue, solitary; sepals 25-50 mm. long; leaves 3-foliolate. 
FE. Leaves ternate, entire or merely toothed. E. (C. columbiana; C. verticilla- 
ris. ) C. occidentalis Hornm. 
EE. Leaves biternate, incisely toothed or lobed. C. E. (C. alpina occidentalis; 
C. pseudoalpina; C. ochotensis.) 
C. alpine Mill. 
MYOSURUS MOUSE-TAIL 
Herbs, annual, small. Leaves linear or linear-spatulate, entire, basal. Flowers 

solitary, on simple scapes. Sepals 5—6, spurred at base. Petals 0 or 5—6, with 
long claws, with a pit at tip, greenish-yellow. Stamens 5-25. Akenes many, with a 
prominent ridge, apiculate or aristate, on a slender or conical receptacle. (Gk. mys==a 
mouse, oura—a tail; referring to the long tail-like head of akenes. ) 
A. Carpels prominently beaked; carpel-spike 2—-25 mm. long. 
B.  Carpel-spike sessile; petals always present; E. 
M. sessilis Wats. 
BB. Carpel-spike on a scape 2.5—5 cm. long; petals sometimes none. E. 
M. apetalus Gay. 
AA. Carpels cbscurely beaked. 
C. Carpel-spike 1—5 cm. long, 6 mm. or less thick; seed oblong. E. 
M. apetalus lepturus Gray 
CC. Carpel-spike shorter, thicker; seed oval. 
CL. Not a salt-marsh plant. W. E. 
M. minimus L. 
DD. Salt-marsh plant, mainly maritime. W. 
M. major Gr. 
TRAUTVETTERIA FALSE BUGBANE 
Herbs. Leaves alternate, palmately lobed. Flowers small, in terminal corymbose 
panicles. Sepals usually 4, concave, petal-like. Petals none. Akenes many, in a head, 
inflated, 4-angled. (Honor of E. R. von Troutvetter, a Russian botanist.) W.G.E, ‘ | 
T. grandis Nutt. _ 



