510 UMBELLIFERAE. 



i. Daucus Carota L. Wild Carrot. (Fig. 2632.) 



[Voi.. II. 



Daucus Carota L. Sp. PI. 242. 1 753. 



Hispid, usually biennial, erect, 

 i-3 high, the root fleshy, deep, 

 conic. Lower and basal leaves 

 2-3-pinnate, the segments linear 

 or lanceolate, dentate, lobed or 

 pinnatifid; upper leaves smaller, 

 less divided; bracts of the invo- 

 lucre parted into linear or filiform 

 lobes; umbels 2'-^' broad; rays 

 numerous, crowded, ^'-2' long, 

 the inner ones shorter than the 

 outer; pedicels very slender, i x/ - 

 2" long in fruit; flowers white, 

 the central one of each umbel 

 often purple, that of each umbel- 

 let occasionally so, all rarely 

 pinkish; fruit i%"-2" long, 

 bristly on the winged ribs. 



In fields and waste places, very common throughout our area, often a pernicious weed. Natu- 

 ralized from Europe, and native also of Asia. The original of the cultivated Carrot Called also 

 Bird's- or Crow's-nest and Queen Anne's Lace. June- Sept. 



2. CAUCALIS L. Sp. PI. 240. 1753. 



Annual, hispid or pubescent herbs, with pinnately decompound leaves, and compound 

 umbels of white or reddish flowers. Calyx-teeth prominent, acute. Bracts of the involucre 

 few and small or none. Involucels of several or numerous narrow bracts. Petals cuneate 

 or obovate with an indexed point, mostly 2-lobed. Stylopodium thick, conic. Fruit ovoid 

 or oblong, laterally flattened. Primary ribs 5, filiform. Secondary ribs 4, winged, each 

 bearing a row of barbed or hooked bristles or tubercles. Oil-tubes solitary under the secon- 

 dary ribs, 2 on the commissural side. [The Greek name.] 



About 20 species, natives of the northern hemisphere. Besides the following introduced ones, 

 a native species occurs in western North America. 



Umbels sessile or short-stalked, capitate, opposite the leaves. 

 Umbels compound, peduncled; rays slender. 



i. Caucalis noddsa (L,.) Huds. Knotted 

 Hedge-Parsley. (Fig. 2633.) 



1. C. nodosa. 



2. C. Anthriscus. 



Tordylium nodosum L. Sp. PI. 240. 1753. 

 Caucalis nodosa Huds. Fl. Angl. Ed. 2, 114. 



1778. 



Torilis nodosa Gaertn. Fruct. & Sem. i: 82. tol. 20. f. 6. 

 1788. 



Decumbent and spreading, branched at the base, 

 the branches 6 / -i2 / long. Leaves bipinnate, the 

 segments linear-oblong, acute, entire or dentate; 

 umbels sessile, or short-stalked, forming small capi- 

 tate clusters opposite the leaves at the nodes; rays 

 1-3, very short; fruit sessile, ovoid, about i^" long, 

 the outer with barbed prickles on the secondary 

 ribs, the inner with tubercles. 



In waste places and on ballast, Philadelphia, Mary- 

 land and Iowa. Also in the southern States, California, 

 the West Indies, and South America. Adventive from 

 Europe. May-Aug. 



