Davis: RANUNCULI OF NORTH AMERICA. 495 



So. R. Madrensis ROSE, Cont. Nat. Herb. 5: 199. 1899. 



Plant erect, rather slender, 6 to 12 inches high, glabrous on 

 lower parts ; i-4-flowered ; radical leaves i to 2 inches long, 

 petioled, linear to linear-oblong, with coarse distant teeth, ob- 

 tuse ; base cuneate ; stem leaves reduced to bracts, simple or 

 3-lobed : flowers yellow, on long slender peduncles which are 

 hairy near the flower ; receptacle hairy ; petals about 10, obovate 

 to oblong, 3 to 4 lines long : akenes hardly i line long, com- 

 pressed, glabrous ; beak as long, slender. Sierra Madre moun- 

 tains, between Santa Gertrudis and Santa Teresa, Tepic Ty., 

 and in Zacatecas. Altitude 7,400 to 10,000 feet. 



81. R. alismaefolius GEYER, in Benth. PI. Hartw. 295. 



1848. 



JR. Flammula HOOK. Lond.Journ. Bot. 6: 66. 1847. 

 R. Bolanderi GREENE, Bull. Calif. Acad. Sci. 2 : 58. 



1886. 

 R. Hartwegi GREENE, Erythea, 3: 45. 1895. 



Roots fibrous, fascicled : plant erect, usually robust, 6 to 

 15 inches high, branching or nearly simple, slightly pubescent 

 on peduncles : leaves oblong to lanceolate, tapering at base, 

 entire or denticulate, i to 3 inches long ; petioles short and 

 broad, sheathing at base ; upper stem leaves sessile : petals 

 yellow, 6 to 10, obovate, 4 to 6 lines long ; sepals much shorter, 

 reflexed : akenes compressed, smooth ; beak short, often 

 hooked : head of fruit nearly globose. Wet grounds. British 

 Columbia and Colorado to California. 



Var. Calthaeflorus n. var. 

 R. Calthceflorus GREENE, Erythea, 3: 45. 1895. 



Leaves repand-denticulate, and much broader than the type : 

 flowers and petals not different. Colorado, in boggy ground, 

 8,000 feet. 



82. R. alismellus GREENE, Fl. Francis, 2: 97. 1892. 



R. alismafolius var. alismellus GRAY, Proc. Am. Acad. 



7: 327. 1868. 

 R. altsmafolius var. montanus WATS. Bot. King Exp. 7. 



1871. 



Much like R. alism<efolius , but usually very slender, dwarf, 

 often nearly scapiform : leaves lanceolate-elliptical to ovate : 

 petals smaller, 3 lines long. Plants often form a thick cover- 



