15. Ranunculus inamoenus Greene. 



Hirsute or glabrous perennial; roots slender; stems erect, not rooting, 1-3 dm. 

 long, each with 3 to 7 or rarely 11 flowers, hirsute; petioles 4-10 cm. long, 

 appressed-pubescent or glabrous, the stipular leaf bases 1.5-2.5 to rarely 4 cm. 

 long; basal leaf blades simple and ovate or orbicular, 1-4 cm. long, 1.3-5 cm. 

 wide, crenate, 3-lobed or -divided, proximally more or less attenuate to rounded 

 or subcordate and distally rounded, glabrous or appressed-pubescent; cauline 

 leaves alternate, the bracts of 3 or 5 nearly linear lobes, sessile; pedicels to about 

 3 cm. long in flower and 1-5 (-8) cm. long in fruit, appressed-pubescent or 

 glabrous; sepals 5, greenish-yellow, spreading or turned downward, narrowly 

 obovate, 3-5 (-7) mm. long, 2-2.5 (-4.5) mm. wide, pilose, deciduous after 

 anthesis; petals 5, yellow, narrowly elliptic to obovate, 2.5-8 mm. long, 2-4 

 mm. wide; nectary scale glabrous, forming a pocket, truncate; stamens 30 to 50; 

 achenes 50 or 60 to 100 in a cylindroid or barrel-shaped head 6-17 mm. long 

 and 5-8 mm. in diameter, discoid-obovoid, about 1.5 or rarely 2—2.3 mm. long, 

 smooth, densely short-pubescent or glabrous, the margin usually inconspicuous, 

 the slender beak 1-2 mm. long and recurved or straight; receptacle slender, 

 cylindroid, 2-3 mm. long in flower, 6-15 mm. long in fruit, hispidulous or 

 glabrous. 



In wet mt. meadows, on seepage slopes and in wet soils below snow banks, 

 and coniferous forests, in N. M. (Otero Co.) and Ariz. (Apache, Coconino, 

 Mohave and Gila cos.), May-Sept.; Ida. and B.C., s. to N.M. and Ariz. 



16. Ranunculus cardiophyllus Hook. 



Pilose terrestrial perennial; roots 1-2 mm. thick; stems erect, not rooting, 2-4 

 dm. long, branching from near base or scapose, 1- to 5- or 8-flowered, pilose 

 or glabrous, striate; petioles 5-10 (-18) cm. long, pilose or glabrous, the stipular 

 leaf bases 1—4 cm. long and not markedly fibrous after withering; basal leaf 

 blades simple, cordate, 1-6 cm. long, 1-5 cm. wide, crenate, the apex sometimes 

 lobed or rarely parted, proximally cordate and distally rounded, pilose; cauline 

 leaves alternate, the bracts divided into 3 to 7 linear lobes, sessile; pedicels 5-12 

 cm. long in flower, 6-17 cm. long in fruit, densely pilose above; sepals 5, greenish- 

 yellow, petaloid at apices, spreading, obovate, deeply concave, 6-10 mm. long, 

 4-7 mm. wide, densely pilose dorsally, deciduous soon after anthesis; petals 5, 

 yellow, broadly cuneate-obovate to obovate or obovate-oblanceolate, (5-) 8-15 

 mm. long, (4-) 6-13 mm. wide; nectary scale long-ciliate on apical margin (the 

 surrounding petal surface also often with similar long hairs), forming a pocket, 

 obdeltoid to oblong; stamens 35 to 80; achenes 20 to 125 in a cylindroid head 

 5-15 mm. long and 4-6 or usually 7-9 mm. in diameter, obovate, 2 mm. long, 

 1.5 mm. dorsoventrally, 0.6-0.8 mm. laterally, smooth, finely canescent, the 

 margin inconspicuous, the slender beak 0.6-1 mm. long and recurved or straight; 

 receptacle ovoid-cylindroid, 1-4 mm. long in flower, 4-14 mm. long in fruit, 

 densely hairy. 



In wet meadows, wet gravelly loam and conifer forests, in N. M. (Catron, 

 Lincoln, Rio Arriba and Socorro cos.) and Ariz. (Coconino and Apache cos.), 

 June-Sept.; S.D. and Alta. to B.C., s. to N. M. and Ariz. 



Most of our material is usually referred to var. siibsagittatus (Gray) L. Benson 

 with often subsagittate leaves. 



17. Ranunculus pedatifidus J. E. Sm. 



Sparingly pilose terrestrial perennial; roots 0.5-1 mm. thick; stems erect, not 

 rooting, 2-4 dm. long, pilose to nearly glabrous, striate; petioles 4-10 cm. long, 

 pilose, the stipular leaf bases 1.5-3 cm. long; basal leaf blades simple, cordate 

 in outline, 1.5-3.5 cm. long, 1.5-4 cm. wide, pedately divided or parted into 5 



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