30 NEOBOT. 



was an accient one of Thapsia, and I have as- 

 certained 5 species, probably all deviations. 



801. Upopion pinnatum R. stem subangular, 

 leaves pinnate, 5 folioles ovatob!ong sessile 

 acute serrate, base truncate obliqiial- terminal 

 base acuminate; fertile flowers subsessile,seeds 

 with very unequal wings. — Discovered 1823 in 

 West Kentucky glades and since in several 

 other places, Alleghanies &c, pedal, or bipedal, 

 perennial like all the sp. folioles 1 or 2 inches 

 long, terminal often larger. Flowers estival as 

 in all. 



802. Upopion lobatum R. stem striate, 

 leaves all trifoliate, lateral folioles subsessile 

 obliqual ovate acute serrate more or less lobed 

 outside, terminal foliole petiolate, cordate ovate 

 often trilobed ; umbels multiflore, fertile and 

 sterile flowers on short peduncles seeds elon- 

 gate with narrow wings. — In Pennsylvania the 

 Alleghanies, Virginia &c, 1-2 feet high, leaves 

 sometimes very large, and curiously or various- 

 ly lobed or cut, flowers copious sometimes all 

 fertile, but seeds unequal in size. — A var. Ri- 

 gida or perhaps peculiar sp. has stem and um- 

 bels stiff angular canaliculate, folioles large all 

 unequal obliqual ovate oblong unequaly serrate, 

 lateral sessile, medial base truncate auriculate 

 on one side. 



803, Upopion trifoliatum R. stem angular 

 striate, leaves all trifoliate, radical on very long 

 petiols, folioles ovatoblong serrate, lateral obli- 

 qual, terminal on a long petiol, base rounded or 

 truncate ; none lobed ; umbels pauciflore, flow- 

 ers shortly pefluncled.— The most common sp. 

 from New Jersey to Kentucky, bipedal, petiols 

 often pedal, folioles uncial, the middle one some- 

 times deltoid. 



