RANUNCULUS. RANUNCULACE^E. 15 



bage light green, glabrous or nearly so, leaves all entire, obtuse, radical 

 ones oblanceolate, long-petioled , 2-4 inches long; cauline lanceolate to 

 obovoid or oval, the upper ones with very short dilated and thin sheath- 

 like petioles: sepals roundish, spreading, thin: petals 5-8, broadly obovate, 

 2-3 lines long, golden yellow : achenes obovate, moderately compressed, 

 obscurely margined, obliquely tipped with a short style. Very common in 

 wet places in the Willamette valley, and from W. Washington to the Sier- 

 ra Nevada Mountains in California. 



R. Crormani Greene Pitt, iii, 91. Stems several, from a fascicle of per- 

 ennial, thick but slenderly tapering fleshy-fibrous roots, simple, prostrate 

 at base, rooting and bearing leaves at 2-3 nodes, the terminal part naked, 

 ascending and scapif orm , bearing a solitary small flower : leaves broadly 

 ovate or deltoid-ovate, acute, coarsely few-toothed, 6-9 lines long, glabrous, 

 on almost filiform somewhat pilose-hairy petioles 1-3 inches long: petals 5, 

 oblong, obtuse, twice the length of the spreading sepals: achenes small, 

 glabrous, moderately compressed, with a slender curved beak as long as 

 the body. Collected by Mr. M. W. Gorman on wet banks at Cathedral 

 Springs, Crater Lake, southern Oregon, Aug. 22nd, 1896. 



R. alismellns Greene Fl. Fr. 237. R. alismxfolius var. alismellus Gray. 

 Glabrous ; stems slender 2-12 inches long : radical leaves ovate or elliptical 

 to oblong or cordate, 6-15 lines long, on long slender petioles ; cauline 1-2 

 or none, narrower, subsessile : flowers solitary, 4-7 lines broad, on long 

 slender peduncles : achenes few, the mature ones unknown-. In wet mead- 

 ows on the highest mountains, Washington to California. 



R. Populago Greene Eryth. iii, 19. R. Cusickii Jones Proc. Cal. Acad. 

 new series r . 615. Stem solitary, from a fascicle of fibrous roots, erect, 

 leafy, the whole plant flaccid and glabrous, 6-10 inches high : leaves thin- 

 membranaceous, from round-reniform to cordate-ovate, obtuse, entire or 

 obscurely crenate, long petioled; the cauline smaller, ovate and ovate-lanceo- 

 late, sessile: peduncles many, slender, longer than the cauline leaves to 

 which they are axillary : flowers yellow, 4 lines broad : petals 5-6. obovate- 

 oblong: heads of rather numerous thick bhort-pointed achenes small, glo- 

 bose or depressed-globose. Mountains of eastern Oregon and Idaho. 



R. Bolanderi Greene, Bull. Calif. Acad. ii, 58. Glabrous throughout 

 or the peduncles and calyx pubescent : stem stout, erect, 1-3 feet high: 

 leaves lanceolate, sparingly callous-denticulate, obtuse, the lower ones with 

 blade 4-6 inches long on petioles 5-12 inches long, the cauline ones few 

 and short-petioled or subsessile ; petals broadly obovate 3-5 lines long, twice 

 as long as the rounded spreading sepals; scales minute: achenes smooth, 

 moderately compressed, pointed with a slender beak, crowded in a com- 

 pact ovoid head. In wet places, Willamette valley to northern California. 



* * * Terrestrial species with at least some lobed or divided leaves, 

 and no stoloniferous rooting or creeping stems except in R. repens. 



+- Radical leaves few, only lobed : achenes turgid and dorsally roun- 

 ded, in a globose head. 



R. glaberrimus Hook. Fl. i, 12, t. 5, Fig. A. Glabrous: stems weak, 

 2-6 inches long, erect or d.ecumbent : leaves all petioled, radical broadly 

 oval, rounded and coarsely toothed or lobed at the apex; cauline subcu- 

 neate, trifid or entire: petals 5, obovoid, 4-6 lines long, twice the length 

 of the oval spreading sepals: achenes plump, puberulent, slender-beaked, 

 in large globose heads. In wet places, eastern Washington and north- 

 ward : flowering in very early spring. 



R. ellipticus Greene Pitt, ii, 110. Very glabrous: stems several, 2-3 

 inches high, from a large fascicle of perennial fleshy-fibrous roots : radical 

 leaves elliptical, entire, acutish at both ends, the petiole equaling the blade ; 

 the cauline narrower, often cleft into 2-3 linear divisions : petals often wan- 

 ting, sometimes 1 only, or 5, large, broadly obovate or more rounded, bright 



