502 MINNESOTA BOTANICAL STUDIES. 



C. ranunculina NUTT. 1. c. 



Ranunculus Nuttallii GRAY, Proc. Acad. Phil. 56. 1863. 

 R. ranunculinus RYDBERG, Bot. Surv. Neb. 3 : 23. 1894. 



Glabrous, 6 to 10 inches high : leaves usually narrowly lobed ; 

 basal ones long-petioled ; stem leaves few, beneath the branches : 

 flowers several, somewhat corymbose : akenes tipped with the 

 persistent, slender, recurved style. Spring and Summer. Ne- 

 braska to Wyoming. C. neglecta^ in Greene's herbarium, is a 

 form with roots more succulent ; stems and leaves like the 

 above ; petals perhaps a little larger. 



ARCTERANTHIS GREENE, Pittonia, 3: 190. 1897. 



(Combination of Arctic and Eranthis: in allusion to its habitat 

 and resemblance to Eranthis , or Cammarum). 



A monotypic genus of perennial herbs : roots rather fascicled 

 or clustered on a short caudex : leaves mostly radical, rounded 

 and lobed : flowers solitary ; sepals 5 ; petals 10 ; stamens 

 many : akenes in a head, longitudinally ribbed, beaks reflexed. 

 Part of Section CYRTORHYNCHA Gray, Syn. Fl. i : 23, under 

 RANUNCULUS. 



A. Cooleyae GREENE, 1. c. 190. pi. j. 



Ranunculus Cooleyce. VASEY & ROSE, Contr. Natl. Herb. 



I : 289, pi. 22. 1893. 

 Kumlienia Cooleyce GREENE, Erythea, 2: 193. 1894. 



Plant glabrous, 3 to 8 inches high : scape i-2-flowered, 

 sometimes bearing a small leaf near the middle, extending 

 above the leaves when in fruit ; basal leaves many, orbicular, 

 one inch or more across, deeply 3-parted, and again lobed and 

 toothed, glandular tips to the teeth ; petioles broadened or 

 sheathing at the base : flowers yellow ; sepals oblong, obtuse, 

 deciduous ; petals oblong, obtuse, tapering into a slender claw 

 at base : carpels compressed laterally, i-3-nerved on each 

 side ; reflexed style short ; ovule erect. August. Mountain 

 tops near Juneau, and St. Elias Alps, Alaska. 



OXYGRAPHIS BUNGE Verz. Suppl. Fl. Alt. 46. 1836. 

 (From Greek, meaning sharp-style.) 



Trailing and running perennial herbs, with fibrous roots : 

 leaves crenate-dentate or lobed, long-petioled, glabrous : flow- 



