126 MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA UNIVERSITY 
are erect in fruit. Petals white, oblong, a little shorter than the sepals. Stamens 10, 
with flat dilated filaments and oblong anthers. 
It has been suggested that this species is the same as H. grandis Hook. & Arn., but 
I have seen a specimen collected by J. W. Blankinship in Humboldt Co., 1893, which 
agrees fully with the description of Hl. grandis. This specimen I must refer to H. Cali- 
fornica and not to H. frondosa as it differs in no respect from the former, except in the 
larger and fewer leaflets and slightly longer pedicels. 
Rather local in the bay region of California. Specimens examined : 
California; KE. L. Greene, 1889; Mrs. Brandegee. 
2. Horkelia Californica Cham. «& Schlecht. 
Horkehia Californica Cham. & Schlecht. Linnaea, 2: 26. 1827. 
Don, Gard. Dict. 2: 562; Dietr. Syn. Pl. 2: 1628; Walp. Rep. 2: 36; Regel, Act. 
Hort. Petr. 1: 151: Presl, Epim. 198. 
Torr. & Gray, Fl. N. Am. 1: 484; Hook. & Arn. Bot. Beechey’s Voy. 139; Gray, 
Proc. Am. Acad. 6: 529; Wats. King’s Rep. 5: 447; Torr. Bot. U. 8. Expl. Exp. 288; 
srewer & Wats. Bot. Cal. 1: 181; Rothrock, Wheeler's Exp. 6: 360; Rattan, An. Key 
W. Coast Bot. 52; Behr, Fl. Vie. San Fran. 249. 
Sibbaldia Californica Spreng. Syst. 47: 341. 1827. Dietr. Syn. 2: 1020. 
Potentilla Californica Greene, Pittonia, 1: 100. 1887. 
Greene, Fl. Fran. 1: 66; Man. Bay Reg. Bot. 116; K. Brandegee, Zoe, 2: 349. 
Horkelia grandis Hook. & Arn. Bot. Beechey’s Voy. 339. 1841. 
IntusrraAtTions: PLATE 57, f. 1-2; dissection of flower, f. 3; stamen, back view, Ui 
4; front view, f. 5; pistil, f. 6. 
Root perennial. Stems stout, .5-1 m. high, densely glandular and very fragrant, as 
well as the foliage, leafy. Basal leaves numerous, long-petioled, pinnate; leaflets 5-10 pairs. 
Stem leaves smaller, the leaflets more crowded, all densely glandular-hirsute ; leaflets 
2-5 em. long, broadly obovate or orbicular in outline, toothed and incised, sometimes 
3—5-cleft with mostly acute teeth, the upper often confluent. Inflorescence open eymose- 
dichotomous ; pedicels short, 2-5 mm. long. Hypanthium campanulate, in fruit about 1 
em. in diameter, densely glandular and veined, often purple tinged ; bractlets 5-10 mm. 
long, ribbed, ovate and generally 3-toothed at the apex, the middle tooth the longest, 
somewhat exceeding the ovate acute sepals; bractlets and sepals generally erect in fruit. 
Petals white, strap-shaped, oblong, much shorter than the sepals. Stamens 10, with flat 
