OF NORTH AMERICA. 
20 
ovate styles . If it is a Trepocarpus of Nuttal, 
how did he neglect these singular characters ! 
The name was a Grecian name of a Chero- 
phylum. 
798. Entasikom tenuifolium Raf. Atha- 
manta ckerophyloides Nuttal in Coll. herb. 
Trepocarpus aetkusa ? Nut. in Dec,— Quite 
smooth, stem angular, leaves pinnate and bi» 
pinnate, folioles linear setaceous acute thin ; 
umbels trifid opposed to leaves, ombellules 3-7 
flore, male fl. peduncled, fertile nearly sessile. 
—Found in Arkanzas by Nuttal, foliage glau- 
cous minutely cut, stem yellowish, umbels pe- 
duncled lateral, flowers white, seeds 4 or 5 
times as long as broad, 
799. Entasixon? tuberosum R. Phellan - 
drium do Nut. in Collins herb. Root tuberose, 
leaves bipinnate, folioles linear obtuse— another 
plant found in Arkanzas, by Nuttal and widely 
separated from the last, although _ hardly differ- 
ent, except by broader obtuse folioles. The 
specimens are imperfect, but the roots are oblong 
rugose twin ; in a note it is stated the stem 
rises 3 or 4 feet high, the upper leaves are near- 
ly simple, and the germination is acotyle ! 
800. UPOPION. Raf. Polygamous or even 
monoical. Involucres none. Caiix 5dentafe pe- 
tals ovate obtuse flat (dark purple) styles divar- 
icate. Seeds smooth elliptic each with 3 or 4 
unequal large wings, commissure costate. 
L eaves simple ternaie and pinnate , jlmvers 
dark purple , — This G. has been shuffled into 
Thapsia , Cnidium , Thaspium, Smyrnium Sec 
which like Zizia it must form a peculiar one, 
well distinguished from Thaspium having yel- 
low flowers, by its red flowers, petals not acu- 
minate, large unequal wings &c. The name 
