UMBELLIFEREAE. 



[VOL. II. 



I. Peucedanum nudicaule (Pursh) Nutt. White- flowered Parsley. 



(Fig. 2645.) 



Smyrnium nudicaule Pursh, Fl. Am. Sept. 



196. 18(4. 

 Peucedanum nudicaule Nutt.; T. & G. Fl. N. 



1:627. 1840. 



Finely pubescent, or nearly glabrous, the 

 leaves and peduncles 3 / -8 / high. Root 

 elongated, often swollen in places. Leaves 

 bipinnate, the segments oblong or ovate, 

 generally pinnatind into linear or linear- 

 oblong obtusish lobes; bracts of the involu- 

 cels lanceolate, scarious-margined; umbel 

 4-8-rayed, the rays unequal, %'-\W long 

 in fruit; pedicels i // -3 // long; flowers white 

 or pinkish; fruit broadly oval or orbicular, 

 glabrous, 2"-3" long, the lateral wings 

 narrower than the carpel, the dorsal and in- 

 termediate ones inconspicuous; oil-tubes 

 generally solitary in the intervals. 



In dry soil. Manitoba to Minnesota and Kan- 

 sas, west to the Northwest Territory and New 

 Mexico. March-May. 



2. Peucedanum foeniculaceum Nutt. Fennel-leaved Parsley. 



Ferula foeniculacea Nutt. Gen. i: 183. 1818. 

 Peucedanum foeniculaceum Nutt.; T. & G. 



Fl. N. A. 1:627. 1840. 



Tomentose-pubesccnt, or nearly gla- 

 brous; peduncles 4 / -io / high, usually ex- 

 ceeding the leaves. Roots stout and 

 deep; leaves very finely dissected into 

 short, linear or filiform acute lobes and 

 segments, the primary divisions ternate 

 or pinnate; petioles strongly sheathing at 

 the base; umbels unequally 3~i2-rayed, 

 the rays %'-i%' long; bractlets of the 

 in volucels tomentose, united for more than 

 half their length, withering; flowers yel- 

 low; pedicels 2 // -4 // long in fruit; fruit 

 broadly oval, glabrous, about 3" long, 

 the lateral wings narrower than the car- 

 pel, dorsal and intermediate ones rather 

 prominent; oil-tubes 1-3 in the intervals. 



" Prairies, Northwest Territory to Kansas, 

 Missouri and Texas. March -April. 



(Fig. 2646.) 



3. Peucedanum Kingii S. Wats. 

 King's Parsley. (Fig. 2647.) 



Peucedanum graveolens S. Wats. Bot. King's Exp. 



128. 1871. Not Anethrum graveolens L,. 

 Peucedanum Kingii S. Wats. Proc. Am. Acad. 22: 



474. 1887. 



Glabrous, acaulcscent, scape striate, 6'-2o' 

 high, as long as the leaves or somewhat longer. 

 Leaves all basal, long-petioled. pinnately or 2- 

 pinnately divided into narrowly linear segments 

 YI" wide or less; umbel unequally 4-2o-rayed; 

 rays ^ / -i^ / long; involucels of several lanceo- 

 late partly united bracts; flowers yellow; calyx- 

 teeth short; fruit oblong, glabrous, 4 // -6 // long, 

 nearly 2" wide, the carpels with narrow lateral 

 wings, the dorsal and intermediate ribs also 

 somewhat winged; oil-tubes 3-6 in the intervals, 

 and 6-10 on the commissural side. 



Western Nebraska to Utah. June-Aug. Perhaps 

 not properly referred to this genus. 



