Da-vis: RANUNCULI OF NORTH AMERICA. 497 



jona into adjacent California, and in Lower California, at La 

 ^huparosa and Sierra de la Laguna. Flowers appearing very 

 ate at high altitudes. 



86. R. samolifolius GREENE, Pitt. 3: 13. 1896. 



Much like R. hydrocharoidcs. Leaves entire, obtuse, ob- 

 anceolate, petioled ; upper ones oval or obovoid : petals ob- 

 >vate ; sepals round-ovoid, spreading : akenes like that species. 

 Sigh altitude, Mt. Shasta, southward. 



87. R. stolonifer HEMSL. Diag. PI. Nov. 17. 1879. 



Plant small, entirely glabrous, spreading by stolons : stem 

 srect, 2 to 6 inches or less : leaves subentire or sometimes cre- 

 late, the radical ones long-petioled, reniform or roundish ellip- 

 ical to lanceolate-oblong ; blade 3 to 12 lines long, petiole i to 

 i, with base membranous and dilated ; stem leaves sessile, nar- 

 ow : flowers small, yellow, long-peduncled ; receptacle conical, 

 glabrous ; sepals oblong, i to i ^ lines long ; petals 5 or 6, ob- 

 ong-elliptical, about i^/( lines long, the long claw with a con- 

 spicuous nectary ; stamens longer than petals, filaments dilated : 

 ikenes much compressed, slightly margined, glabrous : head of 

 rruit globose. Near Morales in San Luis Potosi, Mex., 6,000 

 o 8,000 feet altitude. 



88. R. vagans WATS. Proc. Am. Acad. 26: 131. 1891. 



Plant low, glabrous, spreading by elongated stolons : leaves 

 larrowly lanceolate, or the lowest ovate-lanceolate, entire or 

 vith a few often slender teeth toward the apex : petals 8 to 10, 

 Dblong-obovate, about 2^ lines long, a prominent nectar pore 

 ibove the narrow claw ; sepals little over half as long : akenes 

 smooth, in a dense globose head 2^4 lines in diameter. Flor 

 ie Maria, State of Mexico. Aug., 1890. Pringle no. 3177. 



89. R. reptans LINN. Sp. PI. 549. 1753. 



R. filiformis lA\cw&. Fl. i: 320. 1803. 

 R. reptans var. filiformis DC. Syst. 1 : 248. 1818. 

 R, Flammiila var. filiformis HOOK. Fl. I : n. 1829. 

 R. Flammulavar. reptans E. MEYER, PL Labr. 96. 1830. 



Stem prostrate, rooting at the nodes, pubescent or nearly 

 glabrous : leaves linear-lanceolate to spatulate, usually entire, 

 [ to 2 inches long, narrowed into the petiole : peduncles ascend- 

 ng, i to 3 inches, each terminated by a single flower ; petals 



