Daucus. UMBELLIFER;E. 635 



Seed flattish, or somewhat teretely convex, plane on the face. — 

 Umbels compound. 



37. LASERPITIUM. Tourn. ; DC. prodr. 4. j^. 204. 



Margin of tlie calyx 5-tooUied. Petals obovate, eraargiuate, the ]»)\n{ 

 inflexed. Fruit dorsally compressed, or somewhat terete. Primary ribs of 

 the carpels filiform : secondary ones all winged, with single vitta; beneath 

 them. Carpophore free, 2-partc'd. — Perennial herbs. Leaves 2-3-pinnato- 

 ly divided; the segments entire, toothed, or incised. Involucre ami involu- 

 cels many-leaved. Flowers white, or rarely yellow. 



1. L. hirsutum (Lam.) : leaves supradecompouud, liirsiite ; segments nar- 

 row, pinnatitid ; the lobes short, linear, c-usi)idat(; ; leatlels of the involucre 

 meml)ranaceons, mostly 3-cleit at the summit, ciliate ; wings of the fruit 

 slender, fiat. DC.—Lam.Jl. Fr. 3. i>. G48; DC. prodr. 4. p. 205 ; Hook. &; 

 Am. hot. Beechctj, p. 125,- Hook. jl. Bor.-Am. 1. p. 270. 



Kotzebue's Sound, Lay t^ Collie. — An alpine plant in Europe. 



Tribk LX. DAUCINE/E. DC. 



Fruit lenticularly compressed on the back, or somewhat terete. 

 Carpels with 5 filiform bristly primary ribs, of which the lateral are 

 placed on the flat commissure ; and 4 more prominent prickly se- 

 condary ones ; the prickles distinct or united into a wing. Seed 

 flattened or convex on the back, liattish on the face. — Umbels 

 compound. 



38. DAUCUS. Town.; Linn. ; DC. prodr. 4. p. 209. 



Margin of the calyx 5-toothed. Petals obovate, emarginate, with an in- 

 flexed point ; the exterior ones often larger than the others and deeply 2-cleft. 

 Fruit somewhat dorsally compressed, ovate or oblong. Carpels with 5 pri- 

 mary filiform bristly ribs, of which 3 are on the back and 2 on the flat com- 

 missure : secondary ribs 4, equal, more prominent, winged, divided into a 

 single row of prickles. Intervals with single vitta; under the secondary 

 ridges. Carpophore free, entire.— Mostly biennial herbs. Leaves 2-3-pin- 

 nately divided. Involucre of several trifid or pinnatifid leaflets. Leaflets of 

 the involucel entire or 3-cleft. Flowers white or yellow; the central one 

 often fleshy and sterile. 



-A 1, D. Carota (hiun.) : stem hispid ; leaves 2-3-pinnatifid ; segments pin- 

 natifid ; the lobes lanceolate, cuspidate ; leaflets of the involucre pinnatifid, 

 nearly the length of the umbel ; prickles about equal to the diameter of the 

 oblong oval fruit. DC— Linn. spec. 1. p. 242 ; Engl. hot. t. 1174 ; Pnrsh, 

 fl.\. p. 191 ; Torr. ! fi. 1. p. 308 ; DC. prodr. 4. p. 211. 



Fields, road-sides, &c. ; naturalized throughout the United States. July- 

 Sept.— Root fusiform. Stem 2-3 feet high^ branching. Umbels concave. 

 Flowers white, or sometimes ochroleucous, the solitary central one of each 

 umbellet abortive and colored. — Carrot. Wild Carrol. 



