474 MINNESOTA BOTANICAL STUDIES. 4 
rowly and sharply cut-toothed; middle leaflet stalked, lateral 
ones sessile, all cuneate at base; the long petioles hirsute, widely 
sheathing and smooth at the base: peduncles sulcate; recepta- 
cle pilose: flowers yellow; calyx reflexed: akenes obliquely 
round-obovate, slightly margined laterally, terminated by the 
long erect style, smooth: head of fruit globose. June to July. 
Meadows, Jalapa, Vera Cruz. Allied to 2. dichotomus, leaves 
nearly as finely dissected, yet much allied to A. Hooker?. 
22. R. macranthus ScHEELE, in Linnea, 21: 585. 1848. 
Le. repens var. macranthus Gray, Pl. Lindh. 2: 141. 1850. 
Plant hairy; erect or spreading, % to 3 feet high: leaves 3- 
5-divided, the middle leaflet longer stalked than the others, lobed 
and cleft into narrower segments than in AV. septentrionals: 
petals 7 to 16, yellow, 5 to 7 lines or longer, oblong to obovate ; 
sepals shorter, spreading: receptacle hairy: akenes flat, ovate 
to orbicular, widely margined; style subulate, long, often only 
partly persistent: head large, slightly lengthened. Texas, 
southwestern Arizona into Sonora, Mex. 
23. R. subalpinus n. n. 
ft. delphinifolius H.B.K. Nov. Gen. & Sp. 5: 38. 1821. 
Not Torr. 
Roots fibrous: stem erect, branched above, few-flowered, 
silky-hairy: radicai leaves long-petioled, pilose on both sides, 
ternate, lateral leaflets subsessile, 2-parted, terminal one well 
stalked, 3-parted, segments 2~-3-lobed, incised and toothed; 
lobes lanceolate ; stem leaves similar but smaller, short-petioled : 
flowers on long peduncles, erect, as large as in /t. dulbosus ; 
sepals 5, silky outside, reflexed, ovate, acutish, yellowish, much 
shorter than the corolla; petals about 15 (jfde Bonpl.), yellow, 
glabrous, 5 lines long, spatulate-oblong, apex rounded, claw 
furnished with a scale: young ovaries many, small, sessile, 
ovate to subrotund, compressed, glabrous; style long and slen- 
der. May. Moist places. Altitude 8,000 to 9,000 feet. San 
Miguelito Mountains and at Guanajuato, Mex. 
24. R. canus Bentu. Pl. Hartw. 294. 1848. 
fe. Californicus var. canus Warts. Bot. Calif.1: 8. 1876. 
Plant canescent when young but often becoming green and 
sparingly villous; erect or ascending, rather large, I to 2 feet 
high: leaves with mostly 3 or more divisions; the middle one 
