Davis: RANUNCULI OF NORTH AMERICA. 475 



stalked ; leaflets cuneate, 2 3-cleft and again incised : petals 

 yellow, 5 to 6 lines long, obovate ; sepals half as long, reflexed, 

 soft-hairy : akenes about 2^ lines long ; beak less than half as 

 long, broad, hooked. Sacramento valley, Calif. 



Var. Blankinshlpii ROBINSON, Syn. Fl. i : i : 35. 1895. 



The silky coat persistent but less dense than in the typical 

 plants : akenes plainly hispid and papillose. Capay, Yolo 

 County, Calif. 



Var. hesperoxys n. var. 

 R. hesperoxys GREENE, Erythea, 2 : 189. 1894. 



Plants much greener than the type ; doubtless due to the 

 early falling of the canescence. California. 



25. R. amarillo BERTOL. Fl. Guat. 24. 1840. 



Hirsute, stem branched, ascending : lower leaves petioled ; 

 leaves compound ; leaflets stalked, subcordate-ovate, acute, 3- 

 lobed, cut-toothed ; the upper leaves often short-petioled, ter- 

 nate, divisions lanceolate, dentate : petals about 8, yellow, ob- 

 long-cuneate ; sepals shorter, hairy, reflexed ; flowers as large 

 as R. acris : akenes compressed, glabrous ; style long, erect but 

 recurved at tip : head of fruit globose. Guatemala. 



26. R. repens LINN. Sp. PI. 554. 1753. 



R. pro stratus POIR. in Lam. Encycl. 6: 113. 1804. 

 R. Clintonii BECK. Bot. 9. 1833. 



Roots fibrous : plant more or less hairy : spreading by 

 runners; flower stems often ascending 6 to 12 inches: leaves 

 petioled, 3-divided ; middle leaflet or all of them stalked, often 

 again 3-lobed or cleft, and somewhat coarse toothed, bases 

 cuneate or truncate : petals obovate, 5 to 6 lines long ; sepals 

 much shorter, spreading, hairy below : akenes compressed, 

 margined; beak short, stout, slightly bent: head globose. 

 May to July. Common. Nova Scotia and Newfoundland to 

 Virginia, westward. Also Europe and Asia. Cultivated. 



27. R. palmatus ELL. Sketch, 2: 61. 1824. 



Included by Gray, '86, with R. septentrionalis which it is 

 much like; plant smaller, more decumbent; runners often 

 long : leaves i inch across, thin, somewhat 3-parted or divided, 

 divisions ovate, coarsely few-toothed ; lowest leaves often sub- 

 entire : flowers 6 lines broad. Pine lands and swampy places, 

 Tennessee, South Carolina, Florida. 



