ORDEK 63. UMBELLIFEILE. 141 



26. EULOPHUS, N. Calyx limb 5-touthed, deciduous. Fr. contracted 

 laterally, somewhat double. Carpels surrounded with large vittae, ribs 

 obsolete. Seed channelled on the inner face. l Smooth, branched. Lvs. 

 ternately decompound. Invol. nearly 0. Involucel setaceous. Fls. white. 

 K. Americana N. Lvs. mostly radical ; segm. lance-lin., 1' long, acute, upper Ivs. in 



8 long, entire seg. ; umb. long-stalked, 3-10-rayed. Prairies, O. to m. and Tenn. 3 *f. 



27. CICUTA, L. WATER HEMLOCK. Calyx margin of 5 broad seg- 

 ments. Fr. subglobous, didymous. Carpels with 5 flattish, equal ribs, 2 

 of them marginal, intervals filled with single vittae. Seeds terete. ? U 

 Poisonous. Leaves compound. Stems hollow. Umbels perfect. Invol. 

 few-leaved or 0. Involucels many-leaved. Flowers white. 



1 C. in ;><-n la. ta L. St. streaked with purple ; lower Ivs. triternate and qninate, up- 



per biternate ; segments lanceolate, mucronately serrate, the veins running to the 

 notches. Wet meadows. 3-6f. Smooth, glaucous. Leaflets 1 &. Fruit 1J", 10- 

 ribbed. Umbels 3'. July, August. 



2 C. bulbifera L. Lvs. biternate ; Ifts. linear, with remote, divergent teeth ; Ivs. of 



the branches 3-cleft or simple, subopposite, bearing bulblets in their axils. Swamp* 

 Can. to Penn. and W. 3 4f. Leaflets 2 V by 14". Umbels few. August. 



28. SITJM, L. WATER PARSNIP. Calyx teeth acute. Pet. obcordate, 

 with an inflexed, point. Fr. nearly oval, laterally compressed. Carpels 

 with 5 obtusish ribs; and several vittae in each interval. Carpophore undi- 

 vided. U Leaves pinnate, dentate. Umbels perfect, with many-leaved 

 involucra. Flowers white. Stout herbs. 



S. latlfollum L. St. angular, sulcate; Ifts. oblong-lanceolate, acutely and coarsely 

 serrate, barely acute; cal. teeth conspicuous. Swamps, Ind. (Green Co. !) and Can. 

 3 4f. Lfts. 4 <i' by 12', 2-10-toothed. Umb. with 2030 long (3-40 rays. Jl., Aug 



29. DISCOFLEURA, DC. BISHOP- WEED. Cal. teeth subulate, per- 

 sistent. Fr. ovate, often didymous. Carp. 5-ribbed, the 3 dorsal ribs fili- 

 form, subacute, prominent, the 2 lateral united with a thick, accessory 

 margin ; intervals with single vittfe. Sds. subterete. @ Lvs. capillaceous 

 dissected. Umbels compound. Bracts of the invol. cleft. Fls. white. 



1 D. caplllacea DC. Erect or procumbent ; umbels 3-10-rayed ; Ifts. of the invol. 



3 5, mostly 3-cleft ; fr. ovate. Swamps near the coast, Mass, to Ga. 1 2f. June+. 



2 D. costata Hale (1850). Branched, erect; umbels 7-15-rayed ; bracts of the invol. 



10 12, 2-5-parted ; If.-segm. filiform, numerous, apparently verticillate ; fr. with rih 

 and vittse strongly contrasted. Swamps, Ogeechee R. and W. 1 2f, stout. Oct., NOT. 

 8 D. Nuttallil DC. Erect, tall ; umbel 15-20-rayed ; invol. few bracted, bracts en 

 tire ; fr. broadly cordate-ovate. Wet prairies, Ky. and S. Slender, 2 4f. 



30. CORIANDRUM, L. CORIANDEH. Cal. with 5 conspicuous teeth. 

 (). Her petals radiant, inflex-bifid. Fr. globous. Carp, cohering, with the 

 5 depressed, primary ribs, and 4 secondary more prominent ones, seedt 

 concave on the face. Smooth. Invol. or 1-leaved. Involucels 3 

 leaved, inftateral. 



C. Kittivuiii L. Lvs. bipinnate, lower ones with broad-cuncaie Ifts., upper with lln 

 ear Ifis. : car)), hemispherical. Europe, 2f. Cultivated for its spicy frnit. 



