274 NORTH AMERICAN FLORA [VoLuME 22 
late, acute, mostly entire ; basal leaves numerous, densely appressed-silky-canescent, pin- 
nate; leaflets 6-11 pairs, cuneate, entire at the base, coarsely toothed above, 5-10 mm. 
long; stem-leaves smaller and with narrower leaflets; cyme rather closely-flowered, with 
short branches ; hypanthium densely appressed-hoary or strigose-canescent, cupulate, about 
half as deep as wide; bractlets and sepals broadly lanceolate, the former generally some- 
what smaller, the latter 4mm. long, acuminate; petals broadly spatulate or cuneate, a little 
exceeding the sepals, truncate or usually more or less emarginate. 
TYPE LOCALITY: Mountains above San Bernardino, California. 
DISTRIBUTION : Southern California, near the coast. 
ILLUSTRATION : Mem. Dep. Bot. Columbia Univ. 2: p/. 62. 
11. Horkelia Bolanderi A. Gray, Proc. Am. Acad. 7: 338. 1868. 
Potentilla Rolanderi Greene, Pittonia 1: 103. 1887. 
Horkelia Bolanderi marinensis Elmer, Bot. Gaz. 41: 321. 1906. 
Perennial, with a scaly rootstock and a rather slender caudex, much branched and 
somewhat tufted ; stems several, in the original specimens less than 1 dm. high and nearly 
scapose, in later specimens 2-3 dm. high and more leafy, slender, finely villous; stipules 
lanceolate, 5 mm. long, mostly entire; basal leaves pinnate; leaflets 6-11 pairs, loosely 
and densely villous or hoary-canescent, cuneate, about 5 mm. long, entire at the base, 
coarsely 3-5-toothed at the apex; cyme in the original specimens dense, subcapitate, in 
later ones more open; hypanthium densely villous or hoary, about 4 mm. in diameter in 
fruit, saucer-shaped, about athird as deep as wide; bractlets linear-lanceolate, generally 
much shorter than the broadly lanceolate sepals, which are about 5 mm. long; petals 
oblong-spatulate, apparently cream-colored, about a third longer than the sepals, rounded 
at the apex. 
TYPE LOCALITY : Near Clear Lake, California. 
DISTRIBUTION : Central California. 
ILLUSTRATION : Mem. Dep. Bot. Columbia Univ. 2: p/. 63. 
12. Horkelia platycalyx Rydb. Mem. Dep. Bot. Columbia 
af Univ. 2: 131. 1898. 
Horkelia capitata Por. Pacif, R. R. Rep. 4: 84. 1857. » 
Perennial, with a scaly rootstock and short caudex; stem stout, 5-10 dm. high, glan- 
dular-pubescent, leafy, often tinged with red; stipules ovate, 1-2 cm. long, often toothed ; 
basal leaves several, more or less glandular-puberulent ; leaflets 5-7 pairs, obovate, crenate, 
1-2 cm. long; stem-leaves similar but with fewer leaflets ; cyme open and branched; ped- 
icels rather long, often 2.5 cm.; flowers 15-20 mm. in diameter; hypanthium glandular- 
pubescent, saucer-shaped, a fourth to a third as deep as wide; bractlets ovate, a little 
smaller than the ovate-triangular sepals which are 5-6 mm. long; petals oblong or spatu- 
late, exceeding the sepals by about a third; rounded at the apex. 
TYPE LOCALITY : Santa Barbara, California. 
DISTRIBUTION: Southern California. 
ILLUSTRATION : Mem. Dep. Bot. Columbia Univ, 2: p/. 64. 
13. Horkelia truncata Rydberg, sp. nov. 
Horkelia californica paucifoliolata S. Wats. in herb. (Rydb. Mem. Dep. Bot. Columbia Univ. 
2: 131, asa synonym under H. platycalyz. 1898). 
Perennial, with a short rootstock and caudex ; stem 2-5 dm. high, glandular-pubescent, 
leafy, green; lower stipules linear-lanceolate, more or less cleft, 1-2 cm. long, the upper 
lanceolate and entire; basal leaves several, glandular-puberulent and hirsute on the veins; 
leaflets 2-4 pairs, obovate-cuneate, truncate at the apex with usually 3 large teeth of which 
the middle one is shorter, otherwise finely crenate, 1-4 cm. long; inflorescence open, but 
few-flowered ; hypanthium saucer-shaped, 7-8 mm. wide and half as deep; bractlets lance- 
ovate, 4-5 mm. long, a little shorter than the ovate acuminate sepals; petals broadly obo- 
vate, 5-6 mm. long; outer filaments triangular, much broader than the inner. 
Type collected in Brandegee’s garden at San Diego, cultivated plant brought from Ramona, 
California, Harley P. Chandler 5321 (herb. Univ. of Calif.). 
DISTRIBUTION : Southern California and northern Lower California. 
