1. lIvniCOCOT YLS, Tourii.- Water Pennywort. 



H. AmePiea'na, L.. StSm spreading and creeping, 

 very sleiider. Leaves kidney-shaped, crenate, slightly ■ 

 lobed. Umbels 3-5-flowerecl, inconspicuous, in the axils of^ 

 the leaves. — Shady wet places. 



2. SANIC'IILA, Tourn. Sanicle. Black Snakeroot. 



S. Marilan'diea, L. Leaws 5-7-parted. Staminate 

 flowers very numerous, and on slender pedicels. Styles long, 

 recurved. — Rich woods. 



Var. Canaden'sis, L. Leaves S-B-parted. A few stam- 

 inate flowers among the perfect ones, and on very short 

 pedicels. Styles shorter than the prickles of the fruit. — Low 

 rich woods, not so common. 



3. DAC'Cirs, Tourn. Carrot. 



D. Caro'ta, L. (Common Oarkot.) Found wild occa- 

 sionally in old fields J In fruit the umbel becomes hollow 

 like a bird's nest. 



4. HERACtE'IIM L. Cow-ParsNIP. 



H. lana'tum, Michx. Umbels large and flat. Petioles 

 of the leaves spreading and sheathing. Leaves very large ; 

 leaflets broadly heart-shaped, -deeply lobed. Low wet 

 meadows. 



5. PASTIMA'CA Taurn. Parsnip. 



P. sati'va, L. (Common Parsnip.) Found wild in old 

 fields and along roadsides. Leaflets shining above. 



6. rEUCEB'ASBSI, L. 



1 . P. nudieaule. Nutt. Pubescent. Peduncles 3-8 inches 

 high. Flowers white, in early sijring.—N.W. 



2. P. villo'sum, Nutt., has yellow Aoyrevs.—N.W. 



1. AKCHEM'OKA,, D.C COWBANE. 



A. rig'ida, DC. Calyx 6-toothed. Involucre almost none ; 

 involucels of many small bractlets. — Sandy swamps, south- 

 western Ontario. 



