486 MINNESOTA BOTANICAL STUDIES. 
51. 1809. R. corthusefolius Witip. Enum. Hort. Berol. 
588. 
Root of thick, fleshy, fasciculated fibers: plant velvety hairy, 
1 to 3 feet high: lower leaves long-petioled, roundish to reni- 
form, incised, and with cut and toothed lobes; stem leaves 
divided into 3 to 5 narrow lobes ; upper ones sessile: flowers 
several or many, terminal and axillary, rather paniculate ; sepals 
5, ovate to lanceolate, green with pale margins; petals 5, large, 
broadly obovate, glossy yellow: akenes compressed, hairy on 
sides, tapering into recurved styles nearly their own length: 
head of fruit short oval. May, Island of Teneriffe, Canary 
group. Garden, 45: 944. Bot. Mag. 4625. Not very hardy, 
and needs protection in winter and early spring. It is well 
suited for pot culture. It is increased by division of the roots in 
autumn. 
52. R. longipedunculatus ScueEipw. in Hortic. Belge. 5: 
BO3 1/0. 40. 0, 1838. 
Roots fibrous: stem slender, weak, scapose, often once 
branched near the base: plant pilose with yellowish hairs: rad- 
ical leaves 3-lobed, middle lobe trifid, otherwise mostly entire ; 
true stem leaves wanting or very low; petioles 1 to 1% inches 
long: peduncles 4 to 5 inches long, slender, erect or ascending, 
bibracteate: flowers I or 2, terminal; petals 12 to 15, oblong- 
lanceolate, acutish, yellow; sepals reflexed. Wet places, Real 
del Monte, north of Mexico City. 
53. R. Donianus Pritrz. ex Walp. Rep. 2: 740. 1843. 
Fe. humilis D. Don, ex G. Don, Gen. Syst. 1: 34. 1831. 
Not Pers. 1807. 
Short, 1 to 3 inches high, pilose: radical leaves stalked, cor- 
date, obtuse, slightly 3-lobed and crenate: peduncles long, rad- 
ical, axillary and terminal: flowers small, yellow: carpels 
rather inflated, beaked. Mexico. 
54. R. multicaulis D. Don, ex G. Don, Gen. Syst. 1: 34. 
1831. 
Plant about 3 to 4 inches high, pilose: stems numerous, pros- 
trate or ascending: radical leaves petioled, cordate-roundish, 3- 
lobed; lobes crenate: stem leaves sessile, entire, opposite or 
apparently so: flowers yellow, medium size; petals emarginate, 
much longer than the sepals which are reflexed: carpels rather 
inflated, pointed: head of fruit ovate. Mexico. 
