UMBELLIFERÆ. (PARSLEY FAMILY.) 161 
of the involucre subulate, as long as the hemispherical head; bracts subulate 
acute, twice as long as the calyx. (E. filiforme, Shuttl.) — Damp sandy soil 
along the coast of West Florida. July and August. (2) — Stems 1? -2? long. 
Leaves somewhat fleshy, Flowers very small, blue. 
5. DAUCUS, Tourn. CARROT. 
Calyx 5-toothed. Corolla irregular. Fruit ovate or oblong ; the carpels with 
9 unequal bristly or prickly ribs, and a single vitta under the larger ribs. — An- 
nual or biennial herbs, with pinnately finely Sachs leaves and involucre, and 
white or yellowish flowers. 
l. D. pusillus, Michx. Annual; stem rough with rigid reflexed hairs; 
leaves twice pinnate, with the divisions linear; bristles of the fruit barbed. — 
Dry sterile soil, Florida to South Carolina, and westward. June.— Stem 19 - 39 
high. Umbels long-peduncled. 
6. CICUTA, L. Warzz-HEMrock. 
Calyx 5-toothed. Fruit roundish. Carpels with 5 flattish equal ribs ; the in- 
tervals with single vittæ, and 2 on the inner face. — Smooth perennial marsh 
herbs, with hollow stems, and twice pinnately or ternately divided leaves, Invo- 
lucels many-leaved. Flowers white. 
1. C. maculata, t Stem large (39 - 6o high), pe ‘salts ovate- 
lanceolate, acnte, coarsely serrate ; umbels large, many-rayed. — Marshes, Florida 
to Mississippi, and northward. July. — Plant very poisonous. 
t 
7. CRYPTOTÆNIA, DC. 
Calyx-teeth obsolete. Fruit oblong, contracted at the sides. Carpels equally 
5tibbed, with very slender single vittze in each interval, and one under each rib. 
— A smooth perennial herb, with trifoliolate leaves on long petioles. Leaflets 
large, ovate, doubly serrate and mostly lobed, Rays of the umbel few and very 
unequal. Involucre none. Involucels filiform. Flowers white. 
1. C. Canadensis, DC. (Chzrophyllum Canadense, Pers.) — Rich 
rd soil, North Carolina to Mississippi, and northward. July. — Stem 2° e 
8. LEPTOCAULIS, Nutt. 
Calyx-teeth obsolete. Fruit ovate, compressed on the sides, often rough or 
bristly. Carpels 5-ribbed, the intervals with single vittze, and 2 on the face. — 
smooth herbs, with finely dissected leaves, and white flowers. Umbels 
few-rayed. Involuere none. Involucel few-leaved. | 
1. L. divaricatus, DC. Annual; stem (6-18 high) widely — 
‘ves 2—3-pinnatifid, with the divisions filiform; umbel 3—4-raye 
lam, andis Floride to North Carolina, . 
