UmBettats. A true pinnate leaf, has the partial leaves or — 
Setieta tre 
; _ PENTANDRIA. DIGYNIA. - 185 — 
Srecies. 1. F. villosa. An active poison. 2. *feni- 
Se. segerr cs pubescent; leaves radical, supra- 
slecompound, subbiternately + pSeudo-pinnate, primary di- 
visions decussating at the Bae segments sa short, - 
narrow-linear and subacute, ultimate laciniz trifid; involu- 
crum none; involucell dimidiate, membranaceous, 5 to 7 
lobed; flowers yellow. . eae mie = 
Descript. Root perennial, fusiform. Leaves partly 
resembling those of the Carrot (Daucus Carota) but more 
numerously divided, and with shorter segments. | Scape 
about 1 foot high, grooved and smooth, bearing a single — 
_ umpbell. External rays about 5, 10 to 15 lines long, with 
- several internal ones which are abortive. Involugell on 
one side, consisting of a single memibranaceous lobed leaf 
nearly equal with the flowering umbelict; peduncles short. 
Calix minute, 5-toothed. Petals yellow, equal, oval, invo- 
hute. Styles long and persistent; stigmas capitate. Fruit 
compressed, suborbiculate-elliptic, surrounded with an — 
alated margin, on either side slenderly striate; strie 5, 
-S more conspicuous than the rest; commissure flat, naked, 
the marginal membrane of the seed, not extending over 
_ the centre. The seeds somewhat resemble those of Pas- 
tinaca sativa and are nearly as large. Se an ee 
Allied te-Pastinaca. Has. On the high plains of the 
Missouri, commencing about the confluence of the river 
Jauke. Flowering in April and May. This species pos- — 
sesses somewhat the scent of Fennel, - 
3. nudicaule. Nearly stemless, smooth and somewhat 
glaucous; leaves supradecompound, subbiternately pseu- 
do-pinnate, pimary divisions decussating at the base, 
segments confluent, narrow-linear and acute; ultimate: 
lacine iftreguiarly subtrifid; involucrum none; im 
dimidiate, membranaceous, 7 to 9-parted; flowers 
_ Smyrnium nudicaule. Pursh, Flor. Am, 1. p, 196. v. 
under this name in Herb. Lambert. _ es Rae en 
Ons. Nearly allie to the preceding, but producing a 
minute stem or elevated caudex; in this also the segments _ 
¢ This word, which will be hereafter used, is analogous to 
pinnate of others; though, strictly speaking, there isnot perhaps —__ 
a single instance of this kind of leaf in the whole order of the _ 
articulated to the common midrib, from whence they are 
spontaneously soluble at the period of defoliation; such are the 
leaves of Fraxinus, Robinia, Amorpha, Bignonia, &c. On the 
other hand, the pseudo-pinnate leaves are always? more or less 
oe 
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