376 NORTH AMERICAN FLORA [VoLuME 22 
26. Drymocallis reflexa (Greene) Rydb. Mem. Dep. Bot. Columbia 
Univ. 2: 203. 1898. 
Potentilla glandulosa reflexa Greene, Fl. Fran. 1: 65. 1891. 
Potentilia reflexa Greene, Pittonia 3: 19. 1896. 
Stem 3-6 dm. high, villous with rather long spreading hairs, only slightly viscid ; basal 
leaves pinnate, with about 7 leaflets; terminal leaflet rhombic, 2-3 cm. long, rather densely 
pubescent with spreading hairs, ouly slightly glandular, coarsely serrate with ovate teeth ; 
lateral leaflets more obovate and smaller ; cyme few-flowered, rather open ; bractlets ipnesee : 
late, much shorter than the oval-ovate mucronate sepals; petals deep-yellow, rounded-obo- 
vate, about equaling the sepals, in anthesis reflexed; stamens about 20; pistils many; 
styles fusiform. 
TYPE LOCALITY: Foothills in dry ground, usually under cover of shrubbery or in .groves of 
pines, Sierra Nevada, California. 
DISTRIBUTION: Central Sierra Nevada. 
27. Drymocallis rhomboidea Rydb. Mem. Dep. Bot. Columbia 
Univ. 2: 203. 1898. 
Potentilla rhomboidea Rydb. Bull. Torrey Club 23: 248. 1896. 
Stem low and slender, about 2 dm. high, simple, about 3-leaved, not striate, nearly 
glabrous, or glandular above with very short hairs; stipules small, 2-4 mm. long, ovate, 
subentire; basal leaves many, short-petioled ; leaflets about 7, smooth or beset with a few 
scattered hairs, rhombic-ovate, mostly acute, serrate with acute teeth, the largest leaflets 
1.5 cm., seldom 2 cm. long; stem-leaves about 3, similar, the lowest with about 5 leaflets, 
short-petioled, the other two generally 3-foliolate and subsessile; flowers few in open 
cymes, about 1 cm. in diameter ; hypanthium glandular with very short hairs, sometimes 
also with a few long ones; sepals 4-5 mm. long in flower or about 8 mm. in fruit; bract- 
lets linear-oblong, obtuse or acutish, half the length of the broadly ovate, slightly mucro- 
nate sepals; petals yellow, obovate, a little exceeding the sepals; stamens15-20; styles 
nearly basal, filiform, long and slender, in fruit about twice as long as the smooth achene. 
TYPE LOCALITY: Deer Creek Mountains, Oregon. 
DISTRIBUTION: Mountains of Oregon and Washington to western Montana. 
ILLUSTRATIONS: Mem. Dep. Bot. Columbia Univ. 2: 1. 112, f. 1-5. 
28. Drymocallis cuneifolia Rydb. Mem. Dep. Bot. Columbia 
Univ. 2: 204. 1898. 
Stem erect, 3-4 dm. high, with few divergent branches, sparingly and finely silky- 
villous, scarcely at all glandular; stipules broadly ovate, entire or toothed; basal leaves 
several, with slender petioles, pinnate; leaflets 5-9, finely silky-villous, broadly cuneate- 
flabelliform, coarsely toothed at the apex, entire-margined below; stem-leaves with 3-5 
similar leaflets; cyme open, with divergent branches and slender pedicels; hypanthium 
finely silky, almost hemispheric, 6-7 mm. in diameter; bractlets narrowly linear, much 
shorter than the broadly ovate acute sepals, which are 4 mm. long; petals erect, obovate, 
scarcely exceeding the sepals; stamens about 20; anthers flat, slightly cordate at base; 
styles nearly filiform, much longer than the achenes. 
TYPE LOCALITY: San Bernardino Mountains, California, 
DISTRIBUTION : Known only from the type locality. 
ILLUSTRATION: Mem. Dep. Bot. Columbia Univ. 2: p/. 111. 
29. CHAMAERHODOS Bunge, in Ledeb. Fl. Alt. 1: 429. 1829. 
Perennial or biennial herbs, with tap-roots, 2-4 times ternately divided leaves and small 
cymose flowers. Hypanthium cup-shaped, small. Petals and sepals 5; bractlets wanting. 
Petals obovate or cuneate, somewhat clawed. Stamens 5, opposite the petals; filaments 
subulate, short, persistent; anthers didymous, opening by a slit. Pistils 5-10, or more; 
styles basal, filiform. Seed inserted near the base of the style, ascending and nearly or- 
thotropous. 
Type species, Sibbaldia erecta L. 
