188 DICOTYLEDONOUS PLANTS. 



HAB. Gravelly and rocky places. N. Y. to Car. Sept.. Oct. 

 U.Xtcm 1 2 feet high, pubescent when young Leaves very 

 scabrous on the margins. Branches J -flowered, forming an 

 umbellate corymb. Flutrcrs middle-sized ; rays pale violet ; disk 

 yellow. 



50. A. linifolius Linn. : stem corymbosely branched, scabrous ; 

 branches leafy ; leaves linear, without nerves, punctate, scabrous, 

 reflexed-spreading ; involucre imbricate, short ; rays nearly equal to 

 the disk. Ckrysopsis linifolia Nutt. 



HAB. Shady woods. N. S. Sept., Oct. If. Sfc 1 1-22 

 feet high. Flmcers large, white or pale purple. Scarcely dis- 

 tinct from the preceding. ? 



' 51. A. humilis WiUd.: leaves somewhat rhomboidal, oval-lanceolate, 

 acuminate at each end, slightly petiolate, smooth, hispid on the mar- 

 gin ; corymb diverging, dichotomous, rather naked, few-flowered : in- 

 volucre loose, imbricate; florets of the ray 8 and A. cornifoliits liillil. 

 .9. infirmus Mich. Chrysopsis humilis Nutt. 



HAB. Rocky situations. Can. to Car. Aug., Sept. 2J.. &trm 

 1 2 feet nigh, pubescent. Flmcers in small terminal corymbs" 

 white and large in proportion to the plant ; ray florets about 8. 



52. A. amydatinus Lam. : stem simple, corymbose-fa.sligiate at the 

 summit ; leaves lanceolate, attenuate at base, acuminate, scabrous on 

 the margin ; involucre loose, imbricate ; scales lanceolate, obtuse. A. 

 umbettatus Alt. Chrysopsis awygdalina Xutf. 



HAB. Low grounds. N. S. Aug., Sept. 21. Stem 2 feet high. 

 l-'/tnrer* numerous ; ray florets about 12, narrow, white. Closely 

 allied to the former. 



25. SOLIDAGO. Linn. 



Involucre imbricate, with the scales appressed. Florets of 

 the ray about 5. Receptacle naked, punctate. Pupinm sim- 

 ple, hairy. Flowers yellow. Syngenesia. 8uperflua. 



OBS. An excellent monograph of this difficult genus by Sir J. E. 

 Smith, will be found in Rees' Cyclopeedia, art. SOLIDAGO. The re- 

 marks made concerning the variable character of the preceding genus 

 will equally apply to this. 



* Racemes secund. Lcarcs icith 3 combined nerves. 



1. S. canadcnsis Linn. : stem villous ; leaves lanceolate, serrate, 3- 

 nerved, scabrous ; racemes paniculate, secund, recurved ; rays short. 



HAB. Fields. Can. to Car. Aug., Sept. It. Stem 2 5 feet 

 high, very villous. Leaves large, always scabrous on the upper 

 surface. Flowers in secund racemes, onjarge branches, recurved 

 at the summit. Gulden Rod. 



2. &'. procera Alt. : stem erect, villous ; leaves lanceolate, serrate, 3- 

 nerved, scabrous, villous beneath; racemes erect, spiciform, before 

 flowering nodding ; rays short. 



