UMBELLIFER^. (PARSLEY FAMILY.) 177 



8. E. prsealtum, Gray. Leaves lanceolate, flat, veiny, serrate ; the up- 

 per ones linear, spiay-toothecl ; leaves of the involucre 2-3 times as long as 

 the head; bracts tricuspidate, barely as long as the mature calyx. (E. Yir- 

 ginianum, Ell.) — Fresh nuirshes near the coast, Georgia to North Carolina. 

 August. — Stem 4° -6° high. Lowest leaves l°-2° long and 2^-3' wide. 

 Flowers white. 



9. E. aromaticum, Baldw. Stems clustered, prostrate, very leafy; 

 leaves spatulate, pinnately lobed, cartilaginous on the margins ; the 3 upper 

 lobes broad and spine-pointed, the lower ones scattered and bristle-like ; leaves 

 of the involucre 3-cleft, longer tliau the globose head ; bracts 3-toothed. — Dry 

 pine barrens, East and South Florida. Sept. — Stems 1° long. 



* * Stems prostrate or spreading , Jiliform : heads small, on solitary axillary 

 peduncles : Jioivers blue. 



10. E. prostratum, Nutt. Stems several, prostrate, branching ; leaves 

 thiu ; the earliest ones ovate or oblong, sharply serrate or toothed, loug-peti- 

 oled, the otliers 3-parted, with the middle segment lanceolate and commonly 

 3-toothed ; involucre longer or shorter than the oblong head ; bracts spatulate, 

 obtuse, barely exceeding the calyx. — Low sandy pine barrens, Georgia, 

 Florida, and westward. Sept. — Stems i° - li° long. 



11. E. Baldwinii, Spreng. Stems single, diffusely branched above; 

 leaves lanceolate or oblong, entire, or sparingly toothed, long-petioled, the 

 floral ones sessile, 3-parted, with the segments linear or filiform and entire ; 

 involucre as long as the hemisplierical head ; bracts subulate, acute, twice as 

 long as the calyx. — Damp sandy soil along the coast, Georgia, and westward. 

 July- August. (2) — Stems l°- 2° long. Leaves somewhat fleshy. Flowers 

 verv small. 



5. PIMPERNELLA, L. 



Calyx teeth obsolete. Fruit ovoid-oblong, twin. C.arpels 5-ribbed, the cross 

 section nearly orbicular. Vittse 3 in each interval, and 4 on the commissure. 

 — Smooth perennial herbs, with 2 - 3-ternately compound leaves, and yellow 

 flowers. 



1. P. integerrima, Benth. & Hook. Stem slender; leaflets oblong- 

 ovate, entire ; rays of the umbel long and slender ; involucre none. 

 (Smvrnium integerrimum, L.) — Rocky woods, Mississippi, and northward. 

 May -June. — Stem 1°- 2° high. 



6. BUPLEURUM, Tourn. 



Calyx teeth obsolete. Fruit flattened at the sides, or twin, ovate-oblong. 

 Carpels 5-ribbe(l, the intervals with or without vittte. — Smooth herbs, with 

 entire simple leaves, and yellow flowers. 



1. B. rotundifolium, L. Leaves ovate, perfoliate ; umbel 5-rayed ; in- 

 volucre none ; leaves of the involucel 5, ovate, mucronate. — Waste ground. 

 Sparingly introduced. 



7. CICUTA, L. Water Hemlock. 



Calyx 5-toothed. Fruit roundish. Carpels with .5 flattish equal ribs ; the 

 intervals with single vittse, and 2 on the inner face. — Smooth perennial 



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