>68 DIADELPHIA.— DECANDRIA, 



stipules filiform ; flowers racemed ; joints of the 

 loment obtusely triangular, hispid. 

 HAB. Woods. July. U. Stem 3 ft. high ; leav. 

 3 in. long ; fl. purp. ; bract, long. 



I. H. canescens : erect, hairy; stem with ciliate an- 

 gles, hispid ; leaves ternate, roundish, with ap- 

 pressed hairs beneath ; stipules ovate, acuminate ; 

 racemes paniculate ; bracts cordate ; joints of the 

 loment triangular, hispid. 

 HAB. Dry barren woods. June — Aug. U . Fl. 

 pale purp. 



t. H. marilandicum : erect, branched, hairy ; leaves 

 ternate, oblong, subvillous beneath ; stipules sub- 

 ulate ; racemes paniculate ; loments 3-jointed ; 

 joints rhomboida). reticulate, a little hairy. 

 HAB. Dry woods. July — Aug. U . Stem hairy? 

 above ; petiole long ; pan. loose. 



J, H. ciliare : erect, somewhat hairy ; leaves ternate, 

 approximate, on very short petioles ; leaflets 

 small, oval, obtuse ; stipules subulate ; panicle 

 terminal; joints of the loment (2 — 3) semiorbicu- 

 lar, hispid. 

 HAB. Dry swamps. Aug. U. Stem 2 ft. high, 

 slend. ; leav. small, numerous. 



5. H. obtusum : stem erect, very slender, smoothish ; 

 leaves ternate, ovate, obtuse, subcordate at the 

 base ; stipules subulate ; panicle terminal ; joints 

 of the loment semiorbicular, reticulate, hispid. 

 HAB. Woods. Aug. U . Stem 2 ft. high, branch. : 

 leav. 1 in. long ; lorn. 3-joint. 



S. H. viridiflorum : stem erect, branched, scabrous; 

 leaves ternate, ovate, obtuse, scabrous above, vil- 

 lous and very soft beneath ; panicle terminal, very 

 long, naked ; joints of the loment triangular. 

 HAB. Woods:- Aug. U . Stem 3 ft. high, pubes. : 

 fl. greenish externally. 



7. H. hnmifnsum: stem prostrate, smooth; leaves 

 ternate ; lea&Vk ternate, slightly hairy ; racemes 

 elongated ; joints of tne loment subrhomboidal. 

 HAB. Woods. Aug. U . Leav. subacute; pan. 

 loose ; joints 4 — 5, hisp. 



3. H. rotundifolium : stem .prostrate, hairy ; leaves 

 ternate, suborbicular, hairy ; stipules cordate. 



