UMBELLIFEEiE. 9] 



14. ncU'TA, L. Water- Hemlock. 



1. C. maeula'ta, L. (Spotted Cowbanb. Beaver 

 Poison.) Stem S-6 feet high, purplish, smooth. Leaflets 

 ovate-lanceolate, coarsely serrate, pointed. — Swamps and low 

 grounds. 



2. C. bulbif'era, L., is easily distinguished from No. 1 

 by bearing clmters of bnlblets in the axils of the upper leaves. 

 The leaflets, also, are Zmear.— Swamps and low grounds. 



15. C4ErM, L. Caraway. 

 C. Car'ui, L. (Caraway.) Escaped from cultivation in 

 many places. 



16. SIVM, L. Water-Paksnip. 

 S. llnea're, Micbx. (S. cicutaifuliuni, Gmelin, inMacoun's 

 Catalogue.) Stem 2-3 feet high, smooth, furrowed. Leaf- 

 lets varying from linear to oblong, sharply pointed and ser- 

 rate. Fruit oblong or ovate, with prominent ribs. — Borders 

 of marshes usually in the water. 



17. CKl'PTOT^'NIA, DC. HONEWOBT. 



C. Canadensis, DC. Stem 1-2 feet high, slender. Leaf- 

 lets large, ovate, doubly serrate. No involucre. — Kich 

 woods and thickets. 



18. BlJPlEr'KllM, L. Thorough-wax. 



B. rotundifo'lium, L. Ballast- heaps. — Atl. Prov. 



19. MCSE'XIl'M, Nutt. 



M. divariea'tum, Nutt. Decumbent. Leaves glabrous 

 and shining, the divisions confluent with the winged rhachis. 

 Rather ill-smelling herbs. — N. W. 



SO. OSJIOKRHI'ZA, Raf. Sweet Cicely. 



1. 0. longls'tylis, DC. (Smoother Sweet Cicely.) Stem 

 reddish, nearly smooth. Leaflets sparingly pubescent, 

 short pointed. Styles slender, nearly as long as the ova/nj, 

 recurved. — Rich wooas. 



