298 SYNGENESIA.— SUPERFLUA. 



40. A. polyphyllus : leaves linear, very entire ; radical 

 ones oblong, subserrate ; stem much branched, 

 pubescent ; calyx loose. 



HAB. Pennsylvania. If.. Fl. white. 



41. A. junceus : leaves lanceolate-linear, sessile, 

 smooth ; lower ones subserrate ; stem paniculate, 

 smooth ; branches virgate ; calyx imbricate. 



HAB. Low grounds. Oct. U . Stem tall, slend. ; 



fl. flesh-col. 

 Q. lanceolatus : stem branched, diffuse, rather smooth. 



42. A. fragilis : leaves linear, acuminate, very entire; 

 radical ones serrate, oblong ; branches corymbose- 

 paniculate ; scales of the calyx appressed ; stem 

 nearly smooth. 



HAB. Old fields. Sept. U • Stem 2 ft. high; fl. 

 small, wh. 



43. A. miser : leaves sessile, lanceolate, serrate, 

 smooth ; scales of the calyx acute ; disk equal to 

 the ray ; stem somewhat villous. 



HAB. Old fields. Sept.— Oct. FL small, white. 

 a. divergens : leaves elliptical lanceolate, those of 



the stem elongated ; branches spreading. 

 /3. diffusus : leaves all proportioned. 

 y. pendulus ; leaves of the brunches rather remote : 



branches very divaricate, pendulous. 



c Leaves cordate, serrate. 



41. A. undulatus : leaves oblong-cordate, amplexicauK 

 very entire, hairy, somewhat undulate ; inferior 

 ones ovate, cordate, subserrate ; petioles winged ; 

 stem paniculate, hispid ; branches secund, leafy, 

 1 -flowered. 

 HAB. Dry woods, &c. Sept. U. Stem 2 ft 

 high ; fl. middle-sized, bl. 



45. A. sagittifolius : leaves oblong-lanceolate, acumi- 



nate, sessile, serrate in the middle ; radical ones 

 oblong, cordate-sagittate, serrate, petiolate ; stem 

 branched, smooth ; scales of the calyx loose, lan- 

 ceolate. 

 HAB. In rocky woods ? Sept. TJ. . Fl. middle- 

 sized, blue. 



46. A. paniculatus : leaves ovate-lanceolate, subser- 

 rate. netiolate, smooth; radical ones ovate-cordatp 



