MEMOIRS FROM THE DEPARTMENT OF BOTANY OF COLUMBIA UNIVERSITY 147 
California: Bolander, No. 4964, 1866; A. Gray, 1872 (types) ; Geo. Engelmann, 
1880, 1888; T. S. Brandegee, 1892; Dr. Kellogg, 1873 (P. ciliata Greene). 
35. Horkelia campestris (Jones). 
Potentilla Utahensis campestris Jones, Proc. Cal. Acad. (II.) 5: 680. 1895. 
Ivesia Utahensis campestris Jones, |. ¢. as synonym. 
Intustrations: Puare 88, f. 1; dissection of flower, f. 2; fruiting hypanthium and 
Calyx jd pistily ye 4. 
Zoot rather slender. Stems several, decumbent or prostrate, more or less tinged with 
red, somewhat silky-villous, less than 2dm. long. Stipules lanceolate. Basal leaves numer- 
ous, less than .5 dm. long, pinnate, with many rather approximate leaflets, more or less 
silky-hirsute ; leaflets about 5 mm. long, divided to the base into linear-oblong segments. 
Stem leaves few and smaller. Cyme branched, the branches with subeapitate clusters. 
Hypanthium cupulate or saucer-shaped, nearly glabrous; bractlets linear, much smaller 
than the lanceolate-triangular sepals. Petals yellow, spatulate, a little exceeding the 
sepals. 
First described as a variety of P. Utahensis, to which it bears only a superficial re- 
semblance. It is evidently nearest related to H. wagwiculata, but it is known only from 
the original collection. 
California: Coville & Funston, No. 1624, 1801 (Whitney Meadows, Sierra Nevada). 
Sg. EREMICAE. 
36. Horkelia eremica (Coville). 
Potentilla eremica Coville, Proc. Biol. Soc. Wash. 7: 76. 1892. 
Coville, Cont. U. 8. Nat. Herb. 4: 95. 
In.ustrations: Cont. U. 8. Nat. Herb. 4: pl. 7. Puare 89, f. 1; dissection of 
flower, f. 2; stamen, f. 3; pistil, f 4; fruiting hypanthium and calyx, f. 4. 
Root deep, perennial, thick, woody, crowned by a cespitose caudex. Stems several, 
decumbent or ascending, finely grayish-puberulent or glabrate, 2-4 dm. high, simple, 
somewhat leafy. Stipules ovate, 5. cm. or less long, entire. Basal leaves very numerous, 
grayish hirsute-ciliolate or glabrate, nearly terete and wormlike, with densely crowded, 
ovate leaflets 2-3 mm. long, which, however, are evidently two-ranked. Stem leaves 
similar. Cyme narrow, with erect branches, the pedicels 5-15 mm. long. Hypanthium 
puberulent or glabrate, saucer-shaped, 8 mm. broad ;: bractlets ovate or oblong, about a 
third the length of the lanceolate sepals. Petals white, obovate, exceeding the sepals by 
a half. 
