UMBELLIFER.E. (PARSLEY FAMILY.) 197 



22. CRYPTOTJENIA, DC. Honewort. 



Calyx-teeth obsolete. Fruit oblong, contracted at the sides ; the carpels 

 equally and obtusely 5-ribbed : oil-tubes very slender, one in each interval and 

 one under each rib. Seed slightly concave on the inner face. — A perennial 

 smooth herb, with thin 3-foliolate leaves, the umbels and umbellets with very 

 unequal rays, no involucre, and few-leaved involucels. Flowers white. (Name 

 composed of KpvTrrus, hidden, and raivla, a fillet, from the concealed oil-tubes.) 



1. C. Canadensis, UC. — Thickets: common. June -Sept. — Plant 

 2° high. Leaflets large, ovate, pointed, doubly serrate, the lower ones lobed. 



23. CHiEROPHYLLUM, L. Chervil. 



Calyx-teeth obsolete. Fruit linear or oblong, pointed or short-beaked, con- 

 tracted at the sides ; the carpels 5-ribbed, at least at the apex : inner face of 

 the seed deeply grooved lengthwise : intervals usually with single oil-tubes. — 

 Chiefly annuals or biennials : leaves ternately decompound ; the leaflets lobed 

 or toothed : involucre scarcely any : involucels many-leaved. Flowers chiefly 

 white. (Name from yaipv>, to gladden, and (pvKkov, a leaf, alluding to the 

 agreeable aromatic odor of the foliage.) 



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

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

 or peduncled) ; fruit narrowly oblong, with conspicuous narrow ribs, not beaked. 

 — Moist copses, New Jersey to Illinois and southward. May, June. 



2. C. sativum, Lam. (Garden Chervil.) Taller; lobes of the leaves 

 ovate and pinnatifid ; fruit oblong-linear, ribless, but tapering into a ribbed beak 

 shorter than the seed. (Anthriseus Cerefolium, Ilojfm.) — Rarely seen in 

 gardens (as a sweet herb), but thoroughly spontaneous in fields and copses near 

 Lancaster, Penn., Prof. T. C. Porter. (Nat. from Eu.) 



24. OSMOERHIZA, 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 sweet-aro- 

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

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

 from oapr], a scent, and pi'fa, a root, from the anise-like flavor of the latter.) 



1. O. longistylis, DC. (Smoother Sweet Cicely.) Styles slender, 

 nearly as Ion;/ as the ovary ; leaflets sparingly pubescent or smooth when old, short- 

 pointed, cut-toothed, sometimes lobed. — Rich moist woods : commonest north- 

 ward. May, June. — Plant 3° high, branching : stem reddish. 



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

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

 lets downy-hairy, taper-pointed, pinnatifid-cut. — Common : root less sweet. 



25. CONIUM, L. Poison Hemlock. 



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

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



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