PMBELLIFER^. 163 



the centre abortive; fruit stipitate, clavate, polished, partly 

 hispid; carpels acutely costate. 



Gr. o(T(A,^, perfume, ^i^a, root ; from the aromatic root of this plant, which 

 in fragrance as well as flavor, resembles Anise. Cal. segment obsolete. Pet. 

 oblong, nearly entire, the point inflexcd. Fr. solid, linear, very long, taper- 

 ing to the pedicel, bristly at base. — Perennial herbs. 



1. O. LONGl'STYLIS. Dc. Uraspermum Claytonia. Kutt, 



Styles filiform, nearly as long as the ovary ; fruit clavate. A leafy plant, 

 very common in woods, 1 — 3 feet high, with inconspicuous umbels of white 

 flowers. Root branching, fleshy, of an agreeable, spicy flavor. Stem erect, 

 branching above, nearly smooth. Root leaves on long, slender stalks, the up- 

 per stem leaves sessile, both are decompound, the ultimate divisions often 

 pinnate ; leaflets irregularly divided by clefts and sinuses into lobes and teeth, 

 the lobes broadly ovate, slightly pubescent. Involucres of linear bracts longer 

 than the rays. Fruit blackish, an inch in length, much more acute at the base 

 than at the summit, crowned with the persistent styles. May. Jn. 



Sweet Cisely. 



2. 0. BREVI'STYLIS. Dc. U. hirsutum. B. 



Styles conical, scarcely as long as the breadth of the ovary ; fruit somewhat 

 tapering at the summit. Common in woods. The general aspect of this spe- 

 cies is very similar to that of the preceding, but the root is destitute of the 

 anise-like flavor of that species, being disagreeable to the taste. The plant is 

 more hairy, and with more deeply cleft divisions in the leaves. Involucre 

 deciduous. Umbels with long, diverging rays, of which but few prove fertile. 

 The fruit is similar to the last, but crowned with convergent, not with spread- 

 ing styles. May, Jn. 



23. CONI'UM. 

 Umbel perfect, with general and partial involucra, the par- 

 tial half wanting; fruit ovate, solid; carpels with 5-acute, 

 undulate-crenulate ribs, the lateral ones nnarginal. 



Gr. KoiviioVj Hemlock, from x-cuvoi, a top ; because it made those dizzy who 

 drank it. Fls. perfect. Cal, obsolete. Pet. obcordate, with an acute, inflect- 

 ed point. Fil. scarcely as long as the cor. Ova. ovate, a little flattened, ru- 

 gose, furrowed ; fr. crowned with the wavy, floral receptacle and the spread- 

 ing styles. — Biennial, poisonous herbs. 



C. macula'tum. 



Stem spotted ; leaves tripinnate ; leaflets lanceolate, pinnatifid ; fruit smooth. 

 Grows in waste grounds, way sides, &c. A well known poisonous plant. 

 Stem much branched, about 4 feet high, very smooth, round, hollow, with 

 purplish spots. The lower leaves are very large, several times pinnate, bright 

 green, on long, sheathing foot-stalks. Umbels terminal, the involucre of G — 

 8 lanceolate bracts, the involucels with the inner half wanting. Flowers 

 small, white. Fruit with undulate or wrinkled ribs. The plant is a powerful 

 narcotic, exhaling a disagreeable odor when bruised. Used in medicine. JI. 

 Aug. Poison Hemlock. 



Suborder III, CCELOSPERM^. 

 Seeds inatrved at the base and apex. 



