Voi,. II.] CARROT FAMILY. 535 



3. Zizia cordata (Walt.) DC. 



Heart-leaved Alexanders. 



(Fig. 2692.) 



Smyrnium cordatum Walt. Fl. Car. 114. 



1788. 



Zizia cordata DC. Prodr. 4: 100. 1830. 

 Thaspium. trifoliatum var. apterum A. 



Gray, Man. Ed. 2, 156. 1856. 



Stout, erect, branched, glabrous, or 

 somewhat pubescent, 2-3 high. Basal 

 and lower leaves long-petioled, broadly 

 ovate, or orbicular, undivided, deeply cor- 

 date at the base, sometimes 6 / long, cre- 

 nate all around; stem-leaves shorter-pet- 

 ioled, ternate, or rarely quinate, the seg- 

 ments ovate, or oval, crenate, or lobed; 

 rays of the umbel 7-16, ascending, i'-2' 

 long; fruit ovate, or oval, about i}4" 

 long, and i" wide. 



In woods, Connecticut to Minnesota and 

 the Northwest Territory, south to Georgia, 

 Missouri, Wyoming and Oregon. Ascends 

 to 3500 ft. in Virginia. May-June. 



35. CARUM L. Sp. PI. 263. 1753. 



Glabrous herbs, with pinnate or ternately pinnatifid leaves, and small white or yellowish 

 flowers in terminal compound umbels. Calyx-teeth minute. Petals inflexed at the apex. 

 Stylopodium conic; fruit ovate.or oblong, somewhat compressed, glabrous. Carpels somewhat 

 5-angled, the ribs filiform, or inconspicuous; oil-tubes solitary in the intervals and 2 on the 

 commissural side. Seed dorsally flattened, its face flat or slightly concave. [Greek, caraway.] 



About 50 species, natives of temperate and warm regions. Besides the following, about 4 

 others occur in western North America. 



i. Carum Carui 1,. Caraway. 

 Carvies. (Fig. 2693.) 



Carum Carui L. Sp. PI. 263. 1753. 



Biennial or sometimes perennial, erect, 

 branching, i-2 high. Lower and basal 

 leaves long-petioled, the uppermost nearly 

 sessile, all pinnatisected into linear or 

 filiform segments; bases of the petioles 

 widely dilated; involucre of 1-3 linear 

 bracts, or none; involucels commonly 

 none; umbels i'-2%' broad, 7-io-rayed; 

 rays ^ / -2 / long in fruit; fruit oblong, 

 usually slightly curved, about 2" long, 

 the ribs conspicuous when mature. 



Occasional in waste places, Newfoundland 

 to South Dakota, Pennsylvania and Colorado. 

 Adventive from Europe. May-July. 



36. CICUTA L. Sp. PI. 255. 1753. 



Erect tall perennial glabrous herbs, with pinnate or pinnately compound leaves, and 

 compound terminal umbels of white flowers. Involucre of few bracts, or none ; involucels 

 many-bracted. Calyx-teeth acute. Petals broad, the apex inflexed. Stylopodium short- 

 conic; fruit ovate, or oblong, glabrous, slightly flattened laterally. Ribs corky, the lateral 

 ones strongest; oil-tubes solitary in the intervals, 2 on the commissural side. Seed nearly 

 terete. [The ancient Latin name.] 



About 8 species, natives of the north temperate zone and Mexico. Besides the following about 

 4 others occur in western North America. 



Leaf-segments lanceolate. i. C. ntaculata. 



Leaf-segments narrowly linear. 2. C. bulbifera. 



