158 UMBELUFE^^. (PAESLET FAMILY.) 



23. CW.JEROVW.Yl.l.Vm, L. Chervil. 



Calyx-teeth obsolete. Fruit linear or oblong, pointed but not beaked, con- 

 tracted at the sides ; the carpels 5-ribbed : inner face of the seed deeply fun-owed 

 lengthwise: intervals with single oil-tubes. — Leaves temately decompound; 

 the leaflets lobed or toothed ; involucre scarcely any : involucels many-leaved. 

 Flowers chiefly white. (Name from -/(aipa, to gladden, and (j>vX\ov, u. leaf, 

 alluding to the agi'eeable aromatic odor of the foliage.) 



1. C. procumbens, Lam. Stems slender (6' -18'), spreading, a.little 

 haiiy ; lobes of the pinnatifid leaflets obtuse, oblong; umbels few-rayed (sessile 

 or peduncled) ; fruit narrowly oblong, with narrow ribs. — Moist copses. New 

 Jersey to Illinois and southward. May, Juno. 



24. OSinORRHtZA, Raf. Sweet Cicely. 



Calyx-teeth obsolete. Fruit linear-oblong, angled, tapering downwards into 

 a stalk-like base, contracted at the sides, crowned with the styles ; the carpels 

 with sharp upwardly bristly ribs : inner face of the nearly terete seed with a deep 

 longitudinal channel : oil-tubes none. — Perennials, with thick very aromatic 

 roots, and large 2 - 3-ternately compound leaves ; the leaflets ovate, pinnatifid- 

 toothed. Involucre and involucels few-leaved. Flowers white. (Name from 

 ocr/A^, a scent, and pi^a, a root, in allusion to the anise-like flavor of the latter.) 



1. O. long:istyliS, DC. (Smoothek Sweet Cicely.) Sti/lcs slender, 

 nearly as long as the ovarg ; leaflets sparingli/ pubescent or smooth when old, short- 

 pointed, cnt-tooihed, sometimes lobed. — Rich moist woods, commonest north- 

 ward. May , June. — Plant 3° high, branching. 



2. O. torevistylis, DC. (Hairy Sweet Cicely.) Styles conical, not 

 longer than the breadth of the ovary ; frait somewhat tapering at the summit ; leaf- 

 leifi dovmy-hniry, taper-pointed, pinnatifd-cut. — More common than the last. 



25. COlViUM, L. Poison Hemlock. 



Calyx-teeth obsolete. Fruit ovate, flattened at the sides, the cai-pels with 5 

 prominent wavy ribs, and no oil-tubes ; inner face of the seed with a deep nar- 

 row longitudinal groove. — Biennial poisonous herbs, with large decompound 

 leaves. Involucre and involucels 3-5-!eaved, the latter 1-sided. Flowers 

 wliite. [Kaiveiov, the Greek name of the Hemlock, by which criminals and 

 philosophers were put to death at Athens.) 



1. C. maculXtum, L. Smooth; stem spotted; leaflets lanceolate, pinnati- 

 fid; involucels shorter than the urabellets. — Waste places. July. — A large 

 branching herb : the pale green leaves exhale a disagi-eeable odor when bruised. 

 A virulent nareotico-acrid poison, used in medicine. (Nat. from Eu.) 



20. EtriiOPHUS, Nutt. EuLOPHUs. 



Calyx-tocth small. Fruit ovoid, contracted at the sides and somewhat twin ; 

 the carpels smooth, indistinctly ribbed, and with a close row of oil-tubes : innit 

 face of the seed longitudinally channelled, the cross-section semilunar. — A 



