Part 3, 1908] ROSACEAE 275 
14. Horkelia puberula (Greene) Rydb. Bull. Torrey 
Club 25: 55. 1898. 
Potentilla puberula Greene, Pittonia1: 102. 1887. 
Perennial, with a scaly rootstock anda short woody caudex; stems mostly several, 3-6 
dm. high, branched, finely glandular-puberulent, leafy; stipules obovate, often toothed; 
basal leaves numerous, puberulent or glabrate; leaflets 5-8 pairs, obovate or cuneate-ob- 
long, 1-2.5 cm. long, coarsely and deeply toothed; stem-leaves similar but smaller and with 
fewer leaflets; cyme open, branched, with rather spreading branches; pedicels 5-15 mm. 
long; flowers about 10 mm. wide; hypanthium glandular-puberulent, cupulate, about half 
as deep as wide, in fruit about 8 mm. in diameter; bractlets broadly lanceolate, shorter than 
the ovate-lanceolate sepals, which are 5-6 mm. long, acuminate; petals oblong-spatulate, a 
little exceeding the sepals, rounded at the apex. 
TYPE LOCALITY : Mesas, five miles west of San Bernardino, California. 
DISTRIBUTION : Southern California. 
ILLUSTRATION : Mem. Dep. Bot. Columbia Univ. 2: pl. 65. 
15. Horkelia cuneata Lindl. Bot. Reg. 23: sub A/. 2997. 1837. 
Horkelia Douglasiana Nutt.; H. & A. Bot. Beech. Voy. 338, assynonym. 1838. 
Horkelia californica cuneata A. Gray, Proc. Am. Acad. 6: 529. 1865. 
Potentilla Lindleyi Greene, Pittonia 1: 101. 1887. 
Potentilla multijuga Greene, Fl. Fran. 1: 66. 1891. Not P. multiquga Lehm. 
Perennial, with a short woody caudex ; stems several, rather slender, 1.5-3 dm. high, 
few-leaved, villous and glandular, especially on the upper part, sometimes nearly glabrous ; 
stipules lanceolate or ovate, 5-10 mm. long, mostly entire; basal leaves rather short-peti- 
oled, villous or hirsute-puberulent, or nearly glabrous, pinnate; leaflets 8-12 pairs, cune- 
ate to obovate, entire at the base, deeply toothed above, about 1 cm. long; stem-leaves few 
and small; cyme rather dense and few-flowered; hypanthium villous-glandular, in fruit 
5-8 mm. in diaméter, cupulate, about half as deep as wide; bractlets ovate-lanceolate, a 
little smaller than the similar sepals, which are 5-6 mm. long, acuminate; petals oblong- 
spatulate, exceeding the sepals by about a third, rounded at the apex. 
TYPE LOCALITY: California. ; . 
DISTRIBUTION : California, mear the coast from Monterey to San Luis Obispo. 
ILLUSTRATION : Mem. Dep. Bot. Columbia Univ. 2: pl. 66. 
16. Horkelia Parryi Greene, Bull. Calif. Acad. 2: 416. 1887. 
Potentilla Parryi Greene, Pittonia 1: 102. 1887. 
Horkelia platypetala Rydb. Bull. Torrey Club 25: 55. 1898. 
Perennial, with a scaly horizontal rootstock and a cespitose caudex; stems several, 
slender, 1-2 dm. high, branched, glandular-puberulent ; stipules ovate, often pectinately 
toothed, 5-8 mm. long; basal leaves very numerous, somewhat villous-puberulent ; leaf- 
lets obovate-cuneate, 5-10 mm. long, deeply incised; stem-leaves few and small, with 1-3 
pairs of leaflets; cyme open with slender branches; pedicels in fruit about 1.5 cm. long, 
recurved ; hypanthium saucer-shaped, about a third as deep as wide, in fruit about 7 mm. 
in diameter ; bractlets lanceolate, much smaller than the ovate-lanceolate sepals, which are 
about 5 mm. long; petals white, obovate- to broadly cuneate-oblong, about half longer 
than the sepals, rounded at the apex. 
TypE LOCALITY : Ione, Amador County, California. 
DISTRIBUTION : Amador County, California, — 
ILLUSTRATION : Mem. Dep. Bot. Columbia Univ. 2: p/. 67, f. 1-5 (as 7. platypeiala). 
III. Tenuilobae. Stem leafy at the base. Leaves pinnate, with many cleft or dissected 
small leaflets, obovate or cuneate in outline. Inflorescence a dense cyme. Hypanthium 
campanulate ; bractlets linear, shorter than the sepals. Petals oblong, rounded at the 
apex. Filaments rather narrow, uniform or nearly so. 
