MEMOIRS FROM’ THE DEPARTMENT OF BOTANY OF COLUMBIA UNIVERSITY ei 
filaments and oblong anthers. Stipules about | cm. long, ovate, generally more or less 
toothed. 
In the coast region of northern and central California, Gammon on woody slopes in 
the Bay Region. 
California, Wheeler Exped., No. 1470; E. L. Greene, 1887, 1891; G. R. Vasey, 
1880; J. W. Congdon, No. 278, 1880; Mrs. Curran, 1886; Michener & Bioletti, 1893; 
J. W. Blankinship, 1893 (= H. grandis, according to description) ; C. G. Pringle, 1882; 
Alice Eastwood. 
3. Horkelia elata (Greene) Rydb. 
Potentilla elata Greene, Pittonia, 1: 100. 1887. 
Potentilla Californica elata Greene, Fl. Fran. 1: 66. 1891. 
Greene, Man. Bay Reg. Bot. 116. 
Horkelia elata Rydb. Bull. Torr. Bot. Club, 25: 54. 1898. 
ILLustRATIONS: PuLarE 58, f. 1: dissection of flower, j- 2; stamen, j..3= pistail, 7. 4; 
fruiting hypanthium and calyx, f. 5. 
Stems rather numerous from a perennial root, quite slender, .5-1 m. high, softly but 
sparingly glandular-villous. Stipules ovate-lanceolate, about 1 cm. long. Basal leaves 
numerous, slender-petioled, pinnate; leaflets 7-11 pairs, thin and softly hairy, obovate 
or broadly cuneate-flabelliform, repeatedly cleft and incised into very narrow segments, 
the upper confluent; the stem leaves similar but smaller and with fewer leaflets. Cyme 
open ; pedicels short, 2-6 mm. long. Hypanthium campanulate, softly hairy and gland- 
ular, in fruit 5-8 mm. in diameter; bractlets and sepals triangular-lanceolate, mostly en- 
tire, the former 38-8 mm. long, generally exceeding the sepals. Petals white, oblong, 
about equalling the sepals. Stamens 10. 
Professor Greene first described this as a species, but later reduced it to a variety 
of Californica; while it is true that intermediate forms are found, the species 1s so 
well marked that it is better to regard it as distinct. It has about the same range as H. 
Culifornica but seems to be more common. 
California: G. R. Vasey, 1875; Hooker & Gray, 1877; Rattan, 1866; M. E. Jones, 
1882; C: G. Pringle, 1882; E. L. Greene, 1883; Congdon, 1885; M. K. Curran, 1888 ; 
Alice Eastwood, 1893 and 1894; Brandegee, 1893; Mrs. Brandegee, 1892. 
$2. CUNEATAE. 
4. Horkelia Micheneri (Greene) Rydb. 
Potentilla Micheneri Greene, Erythea, 1:5. 1893. 
Greene, Man. Bay Reg. Bot. 117. 
