92 CLASS XVIII. ORDER 11. 



a marginal ring : receptacle naked. (Taken from 

 Chrysanthemum.) 49. 55 — serotinurn^ (wild fever- 

 few) leaves lanceolate, branches corymbed. %, 



Arnica. Calyx with leafets equal : egret sim- 

 ple : receptacle naked. The florets of the ray 

 usually have 5 filaments without anthers. 49. 55— 

 montana^ (arnic) leaves ovate entire having 2 oppo- 

 site cauline ones. ^ . y. e. 



DoRONicuM. Calyx-scales equal, in two rows, 

 longer than the disk : egret simple : receptacle 

 naked : seeds of the ray naked and destitute of 

 egret. 49. 55 — midicaule, (leopard's bane) stem al- 

 most leafless. %. y. 



Inula. Calyx imbricate or oquaiTose : egret sim- 

 ple : anthers ending in 2 bristles at the base ; re- 

 ceptacle naked : ray florets numerous. 49. 55 — /m* 

 lenium, (elecampane) leaves clasping ovate downy 

 beneath, calyx-leaves ovate. 71 . y. — mariana, leaves 

 sessile lance-oblong glandular-toothed tapering 

 base. %. y. 



Erigeron. Calyx imbricate : egret pilose : re* 

 ceptacle naked : florets of the ray linear, very nar- 

 row, numerous. 49. 55 — bellidifolium^ (early flea- 

 bane) root-leaves obovate serrate, stem-leaves 

 lanceolate entire. 2/. p. w. — philadelfihicum, (blue 

 flea-bane) stem-leaves half- clasping lanceolate sub- 

 serrate, ray-florets as long as those of the disk, 

 stem many-flowered. %. T^-h.-^canadense-, (Canada 

 flea-bane) leaves lanceolate ciliate, lower ones 

 tooth-serrate, panicled, stem and flowers hairy, 

 flowers small numerous. 0. w. 



Solid AGO. Calyx-scales imbricate, closed : 

 egret simple : receptacle naked, furrowed with dots 

 or punctures : ray-florets about 5. (Yellow.) 49. 



55— RACEMES POINTING ONE WAY. altissima^ 



(golden rod) stem erect hairy tall, leaves lanceolate 

 rough wrinkled, lower ones deep-serrate, raceme 



