OF MOKTH AMKKICA. T3 



an aMigat^r, and in fact they are covered abora 

 with hard and rough warts whence my name. 



9 0. Balduina bicolor Raf. nearly smooth^ 

 stem grooved n ked above unifiore, leaves scat- 

 tered sessile narrow cuneate obtuse entire,scales 

 of perianthe adpressed broadly ovate acute, 12 

 white rays cuneate unequaly trifid — another sp, 

 of the real G. Batdiiina^ habit exactly similar, 

 hot flowers larger with white rays and yellow 

 disk* B. unifiora which I have? must now be 

 called B. lutea. This was found by Leconte 

 in Florida or Georgia and deemed a N. G. in 

 Coll. herb, stem pedal, leaves uncial becoming 

 less upwards, rays larger than in J?. luteUj 

 which has a leafy stem, the peduncle incrassat^j 

 leaves broader adpressed ^nd not crowded. 



921. Stevia ovata llaf. herbaceous pubes- 

 ijfiTit, leaves opposite ovate acute serrate tri- 

 nerTe, corymb fastigiate, perianthe 4flore with 

 4 segments linear oblong acute, pappus of 4 

 short obtuse scales. — Texas and Arkanzas, col- 

 lected by Walton, stem pedal, leaves siuaU 

 hardly uncial opposite subsessile, flowers yellow, 

 florets tubular 4fid obtuse, stamens inclosed, 

 seeds linear smooth compressed, crown or pap- 

 pus or 4 very short obtuse scariose scales. 

 Probably a subgenus Etetra by the disposition 

 IB 4 &c. All the N. Amer. sp. akin to Stevia 

 ftppear to deviate as the 2 next Genera evince, 

 even the Mexican sp. include 2 other G. the 

 Mustelia of Sprengel with double pappus, and 

 my Tomista for St. pedata with perianthe 

 camp, pappus truncate. 



922. OTHAKE Raf. diff'. Stevia, perianthe 

 torbinate subSflore, segments about 8 nervose, 

 florets with slender tube, limb as long 5parted, 

 anthers subsessile exertend, style elongate hispid, 



