36 NORTH AMERICAN 



axils 1 or 2flore, flowers sessile calix unequal 

 linear pubescent in the Alleghany mts. bipe- 

 dal, corol rufous red subequal 51obcd, berries 

 purple. Of tbis Genus our botanists admit only 

 two species perfoliatum and angustifolium, 

 but the first also called majus by some con- 

 tains many blended species, and it is hard to 

 say which is meant by each, as few give origi- 

 nal descriptions: this is the sp. of Elliot. I 

 shall increase this Genus to 8 sp. quite distinct, 

 they are all perennial estival plants, with stem 

 simple and axillary flowers, commonly found 

 in limestone or sandy soils. The roots of all 

 are medical and febrifuge, see my medical 

 flora. 



282. TRIOSTEUM MOLLE Raf. entirely villose 

 soft, leaves subconnate broadly oblong acumi- 

 nate undulate repand, villose above, tomentose 

 beneath, axils triflore, flowers subpedunculate 

 Received from Missouri, bipedal. 



283. TRIOSTEUM VILLOSUM Raf. stem striated 

 villose, leaves sessile ovate acute base attenu- 

 ate, smooth above, villose beneath, axils inulti- 

 flore upper sterile, flowers sessile, calix lanceo* 

 late in the sandy soils from Maryland to New 

 Jersey, bipedal, or tripedal corol short dark 

 purple, berries purple. 



284. TRIOSTEUM PUMILUM Raf. stem dwar- 

 fish sulcate villose, leaves sessile oblong elliptic 

 acute, villose beneath, axils uniflore, flowers 

 sessile calix villose long linear on the Apala- 

 chian mts. of Virginia, only one foot high or 

 even less, quite distinct from Tr. angustifolium, 

 probably the minus of some botanists. 



285. TRIOSTEUM ANGUSTIFOLIUM L. Elliot 

 &c, stem hairy, leaves subconnate lanceolate 

 spatulate acuminate slightly scabrous, axils 



