about 1 mm. long in flower, 2 mm. long in fruit, hispid. 



On grassy banks, along roads, in sandy marshes, and in wet soil about ponds 

 and along streams, often in shallow water, in e. fourth of Tex., Mar.-May; a 

 nat. of the Old World that is naturalized in various parts of N.A. 



13. Ranunculus Macauleji Gray. 



Nearly glabrous terrestrial perennial; stems scapose, erect, not rooting, 8-15 

 cm. long, glabrous except on the pedicels; petioles 2-6 (-10) cm. long, glabrous; 

 leaf bases broad and membranous, 3-6 cm. long, persistent several seasons and 

 becoming fibrous; basal leaf blades simple, narrowly elliptic or elongate to some- 

 times narrowly obovate or ovate, 1.5-4.5 cm. long, 5-20 or rarely 2-2.8 cm. 

 wide, 3- or 5-toothed at the apices or occasionally serrate on the distal halves or 

 rarely laciniately or sharply crenately toothed, or with 2 of the sinuses to 13 

 mm. deep (the leaf lobed) and the middle lobe 3-toothed or entire, proximally 

 acute and distally acute to somewhat rounded, glabrous or sometimes ciliate; 

 cauline leaves alternate or practically opposite, almost always ciliate at least near 

 the bases with the hairs to 8 mm. long; bracts entire or toothed, elliptic to 

 obovate, sessile; pedicels 2-6 cm. long in flower, 5-7 cm. long in fruit, glabrous 

 or brown-pilose; sepals spreading, rich-brown, narrowly obovate, 6-10 mm. long, 

 2.5—5 mm. wide, densely and almost always conspicuously dorsally pilose with 

 dark-brown hairs about 2 mm. long, deciduous after anthesis; petals 5 or as many 

 as 8, yellow, cuneate to cuneate-obovate, (6-) 10-14 mm. long, (4—) 6—10 mm. 

 wide; nectary scale glabrous, forming a pocket, 1 mm. long, truncate; stamens 

 30 to 50; achenes 20 to 30 in an ovoid or cylindroid head 5-10 mm. long and 

 4-5.5 mm. in diameter; flattened-obovoid, about 1.7 mm. long, smooth, glabrous, 

 the slender beak 0.5-0.6 or rarely 1 .5-2.2 mm. long, straight or recurved; recep- 

 tacle elongate-cylindroid, 2-3 mm. long in flower, 4—10 mm. long in fruit, 

 glabrous. 



In wet meadows, on the edge of snow banks and in seepage areas, in N. M. 

 (Mora, Rio Arriba and Taos cos.) June-Aug.; also Colo. 



14. Ranunculus Eschscholtzii Schlecht. 



Glabrous perennial; roots slender; caudex 1-6 cm. long; stems scapose, erect, 

 not rooting, 4—15 cm. long, 1- to 3-flowered; petioles 3-8 cm. long, the stipular 

 leaf bases 1-2.5 cm. long, persistent or soon disintegrating or deciduous; basal 

 leaf blades simple or rarely compound, semicircular to reniform in outline, 1.3-3 

 cm. long, 2.5-4 cm. broad, 3-cleft or -divided, the middle lobe again 3-lobed or 

 entire, the lateral ones asymmetrically 3- to 7-lobed or -parted or sometimes 

 -divided, the blades proximally truncate or rounded; cauline leaves alternate, the 

 bracts usually 3-lobed and the lobes entire, sessile; pedicels usually 1-3 cm. long, 

 in flower, 3-13 cm. long in fruit, glabrous; sepals 5, yellow, dorsally tinged with 

 lavender, spreading, obovate, 4-8 mm. long. 3-5 mm. wide, glabrous or with 

 sparse light-colored hair, deciduous after anthesis; petals 5, yellow, cuneate- 

 obovate, (5-) 7-12 (-17) mm. long, 5-11 (-19) mm. wide; nectary scale 

 glabrous, forming a pocket usually 0.3-0.4 mm. deep; stamens usually 20 to 40; 

 achenes in a cylindroid or ovoid head 7-16 mm. long and 4-7 mm. in diameter, 

 oblong-obovoid, 1.3-1.7 mm. long, smooth, glabrous or sometimes hispidulous, 

 the margin inconspicuous, the slender beak 0.8-1 mm. long and not recurved; 

 receptacle cylindroid, 1-2 mm. long in flower, 6-15 mm. long in fruit, glabrous 

 or sometimes puberulent. 



In wet meadows and on wet seepage slopes, in N. M. (San Miguel and Santa 

 Fe cos.) and Ariz. (Coconino Co.), July-Aug.; from Alas, to N.M., Ariz, and 

 Calif. 



943 



