292 NORTH AMERICAN FLORA ([VoLUME 22 
approximate pairs, 5-10 mm. long, 3-5-cleft, with oblong or ovate segments; cyme open, 
flat-topped, with diverging branches and slender pedicels; hypanthium wheel-shaped, 
puberulent, about 5 mm. in diameter, purplish, in fruit 5-angled ; bractlets linear-subulate, 
somewhat fleshy, much shorter than the broadly lanceolate acuminate purplish-tinged 
sepals, which are 5 mm. long; petals purple, linear or oblanceolate, acute, shorter than 
the sepals. 
TyPE LOCALITY; Western border of New Mexico [now within Arizona]. 
DISTRIBUTION: Arizona. © ' . 
ILLUSTRATION : Mem. Dep. Bot. Columbia Univ. 2: p/. 96. 
2. Comarella sabulosa (M. E. Jones) Rydb. Mem. Dep. Columbia 
Univ. 2: 157. 1898. 
Potentilla sabulosa M. B. Jones, Proc. Calif. Acad. II. 5: 680. 1895. 
Tvesia sabulosa M. B. Jones, Proc. Calif. Acad. If. 5: 680, as synonym. 1895. 
Stems several from the caudex, ascending, less than 2 dm. high, more or less tinged 
with brown, slender, glabrous; stipules ovate-lanceolate; leaves less than 1 dm. long, 
glabrate, pinnate; leaflets about 15 rather approximate pairs, 3-5 mm. long, 2-3-cleft into 
oval segments; cyme open and rather flat-topped, with divergent branches and slender 
pedicels; hypanthium glabrous, wheel-shaped, 3-4 mm. in diameter, in age 5-angled ; 
bractlets linear-subulate, thickish, much smaller than the ovate-lanceolate acuminate sepals. 
TyPE LOCALITY : Head of the Sevier River, Utah. 
DISTRIBUTION : Known only from the type locality. 
ILLUSTRATION : Mem. Dep. Bot. Columbia Univ. 2: pl. 97, f. 1-5. 
19. STELLARIOPSIS (Baillon) Rydb. Mem. Dep. Bot. Columbia 
Univ. 2: 155. 1898. 
Polentilla § Siellariopsis Baillon, Hist. Pl. 1: 370. 1869. 
Perennial herbs, with thick woody roots and short erect caudices covered with numerous 
leaves. Leaves pinnate, with numerous, minute, crowded, and imbricate leaflets. Inflo- 
rescence cymose-paniculate, open. Hypanthium saucer-shaped, small. Bractlets, sepals, 
and petals 5. Petals white, elliptic or round-ovate, slightly unguiculate. Stamens 15, in- 
serted on the margin of the disk, separated some distance from the pistil; filaments fili- 
form, long; anthers purplish, didymous, obcordate, each half nearly pear-shaped, dehiscent 
by a subterminal pore. Pistil single, surrounded by numerous bristles; style long and 
slender, terminal. Mature achene very large for the size of the flower, at last assuming 
a more or less horizontal position. Seed inserted near the base of the style, pendulous 
and anatropous. 
Type species, /vesia santolinoides A. Gray. 
1. Stellariopsis santolinoides (A. Gray) Rydb. Mem. Dep. Bot. 
Columbia Univ. 2: 155. 1898. 
Ivesia santolinoides A. Gray, Proc, Am. Acad. 6: 531. 1865. 
Potentilla santolinoides Greene, Pittonia 1: 106. 1887. 
Perennial, with a deep root, not very thick, crowned with a short erect caudex, which 
is densely covered with hairy scales; stems several, erect, much branched, more or less 
silky-villous on the lower portion with long white spreading or reflexed hairs; stipules 
ovate, 5 mm. or less, often divided; basal leaves numerous, 3-10 cm. long, densely white- 
silky, terete and worm-like from the numerous minute crowded leaflets ; stem-leaves similar, 
but smaller; cyme intricately branched into filiform branches and very slender pedicels 
1-2 em. long; hypanthium finely puberulent, saucer-shaped, in fruit 3 mm. in diameter ; 
bractlets ovate, minute, about one fourth the length of the ovate sepals, which are 1.5 mm. 
long; petals white, broadly obovate or orbicular, twice as long as the sepals. 
TYPE LOCALITY: Sierra Nevada, California. 
DISTRIBUTION : Sierra Nevada and San Bernardino Mountains, California. 
ILLUSTRATION: Mem. Dep. Bot. Columbia Univ. 2: 7. 95. 
