COMPOSITE FAMILY. 235 



S. rug6sa, Mill. Very leafy, l-6, rough-hairy ; leaves ovate-lance- 

 olate or oblong, firm, very rugose, often scabrous above and hirsute on 

 the veins beneath ; rays 6-9. Can. to Tex. 



S. ulmifdlia, Muhl. Stem smooth ; leaves thinner, elliptic to oblong- 

 lanceolate, soft-hairy beneath ; rays about 4. Me., W. and S. 



+ + Foliage inconspicuously reticulated, not scabrous above, and com- 

 monly smooth and glabrous beneath. 



Very leafy to the top. 



S. Elli6ttii, Torr. & Gray. Smooth, stout, l-3 ; leaves very numer- 

 ous, elliptic or oblong-lanceolate, acute, strongly veined, thick, shining 

 above ; heads in dense spreading racemes of a crowded, often pyramidal 

 panicle. Mass, to Ga. 



Leaves becoming few and small towards the top of the stem. 



B. negle'cta, Torr. & Gray. Smooth, stout, 2-4 ; upper leaves 

 oblong-lanceolate, acute and nearly entire, the lower ovate-lanceolate or 

 oblong and sharply serrate ; racemes short and dense, becoming spread- 

 ing ; akenes nearly glabrous. Bogs, Can. to Md., W. 



S. Bodttii, Hook. From smooth to pubescent, slender, 2-6 ; leaves 

 ovate- to oblong-lanceolate, pointed, finely serrate ; heads loosely racemose ; 

 rays 1-5 (or 0); akenes pubescent. Va., S. 



S. argiita, Ait. Stem angled, smooth, 2-4 ; leaves large and thin, 

 ovate, strongly sharp-serrate ; racemes pubescent, spreading, in an 

 elongated open panicle ; rays large, 6-7 ; akene generally glabrous. 

 N. Eng. to Ohio and Va. 



S. jiincea, Ait. Smooth ; stem rigid and mostly simple, l-3 ; stem 

 leaves elliptic or lance-oval, sharply serrate, pointed, the radical ones 

 lanceolate or narrow-oblong ; racemes dense and naked, becoming elon- 

 gated and recurved, forming a handsome corymbose panicle ; rays small, 

 8-12. Common, Can. to Tenn. 



12. B ELLIS, DAISY. (Latin: bellus, pretty.) Flowers spring and 

 summer (p. 225). 



B. integrif61ia, Michx. In open grounds from Ky., S. W. ; stems 

 branching, spreading, 4 f -10' long, bearing some lanceolate-oblong or 

 spatulate leaves, and terminal, slender-peduncled heads with pale blue- 

 purple rays. (2) 



B. perennis, Linn. TRUE or ENGLISH DAISY. Cult, from W. Eu., 

 mostly in double-flowered varieties, i.e., with many or all the disk flowers 

 changed into rays, or, in the common quilled form, all into tubes (pink 

 or white) ; in the natural state the center is yellow, the rays white and 

 more or less purplish or crimson-tipped underneath ; head solitary, on a 

 short scape ; leaves spatulate or obovate, all clustered at the root. y. 



13. BOLTONIA. (Named for James Bolton, an English botanist.) 

 Wild plants of low grounds S. and W., resembling Asters except in the 

 akenes and pappus ; ray flowers blue-purple or nearly white ; disk 



' flowers yellow; in autumn. 11 (p. 226.) 



B. diffusa, L'Her. Heads small, loosely panicled on the slender, open 

 branches, which bear small, awl-shaped leaves, those of the stem lance- 

 linear ; pappus of several bristles and 2 short awns. 111. and S. 



B. asteroldes, L'Her. Heads fewer and larger, in corymbs; leaves 

 lanceolate ; pappus of minute bristles and 2 (or 0) awns. Penn., S. 

 and W. 



