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198 ROSE ORDER 



(a) Leaves usually wider than long, 3-7- 



lobed 



x. Flower usually solitary, terminal, nod- 

 ding ; upper leaves with bulbils v$\ cernua 



y. Flowers 2-5, erect ; bulbils absent S\ debilis 



(b) Leaves usually longer than wide, lobed 



to entire 



x. Leaves entire, linear to oblong, ciliate, 

 spiny-tipped, petals with orange or 

 purple dots S. bronchidlis 



y. Leaves usually 3-5-toothed or cleft, 

 mostly spatulate, not spiny-tipped; 

 petals white, pinkish or yellowish, 2- 

 7 mm. long 5*. caespitosa 



(2) Stems leafless 



(a) Stems 1-3 ft. high; leaves round, heart- 



shaped at base ; flowers in a large open 



panicle v$*. punctdta 



(b) Stems 1-15 in. high; leaves lanceolate 



to broadly ovate, tapering or rounded 

 at base, entire to coarsely toothed; 

 flowers 4-10 mm. wide, mostly in a 

 head or a raceme of head-like clusters S. nivalis 

 2. Flowers yellow 



a. Flowers 8-15 mm. wide; basal leaves forming 



a dense rosette 



(1) Stems 1-8 in. high, with runners at base; 



leaves ciliate, 10-15 cm. long v$\ ftagellaris 



(2) Stems 1-3 in. high, without runners; leaves 



smooth, 4-6 mm. long S. chrysdntha 



b. Flowers 1.5-2.5 cm. wide; stems without basal 



rosette, 6-12 in. high 6\ hirculus 



SULLIVANTIA Torrey and Gray 1842 

 (Named for Sullivant, an American botanist) 



Sepals 5, united into a bell-shaped calyx grown to the base of the 

 ovary, petals 5, white, stamens 5, ovary 2-celled, 2-beaked, styles 2 ; flowers 

 in panicled cymes ; leaves mostly basal, wavy-toothed or lobed ; perennial. 

 Stems 4-12 in. high, sticky-hairy; leaves rounded, 

 lobed and toothed, 2-5 cm. wide S. Hapemdnnii 



