88 COMMON CANADIAN WILD PLANTS. 



10. Tlmspium. Stem smooth. Leavesl-S-ternatelydivided. Flowers 



yellow. Fruit not flattened, lO-winged or ribbed, 



11. jDtli»'.sa, Leaves twice or tliriee ternately compound, the divisions 



finely dissected. No involucre : involucels of long narrow bract- 

 lets. Flowers white. Fruit ovate-globose, the carpels with 5 

 thick sharp rihs. 



12. Iijgns'ticnm. Stem smooth, from large aromatic roots. Leaves 



twice ternate, coarsely toothed. Flowers white. Fruit with pro- 

 minent acute rihs, having hroad spaces between them. 



13. Zizia. Stem slender, smooth and glaucous. Leaves 2-3-ternately 



compound. Flowers yellow, Rays of the umbel long and slender. 

 Fruit contracted at the junction of the carpels ; the carpels nar- 

 rowly 5-ribbed, 



14. Cicu'ta* Stem streaked with purple, stout. Leaves thrice com- 



pound. Flowers white. Fruit a little contracted at the sides, the 

 carpels strongly 5-ribbed. 



15. Cariim. Stem erect, slender, smooth. Leaves pinnately decom- 



pound, the divisions filiform. Moots tuberous. Flowers white. 

 Ribs of the ovate or oblong fruit inconspicuous. 



16. Siiiiii. Stem grooved. Leaves simply pinnate. Flowers white. 



Fruit as in No. 1-t. 



17. Cryptota;'nla. Stem smooth. Leaves 3-foliolate, The umbels with 



very unequal rays. Flowers white. Fruit nearly as in Nos. 10 

 and 11. 



§ 2. Inner face of each seed hollowed letigthwise. 



18. liiipleu'rum. Stem smooth. Leaves perfoliate, ova,te,eutive. No 



involucre : involucels of 5 very conspicuous ovate mucronate 

 bractlets. Flowers yellow, 



19. Miisc'iiium. Stem short, branching from the base. Flowers 



yellow. Leaves twice-pinnatifid. Roots spindle-shaped. No 

 involucre ; involucels 1-sided, of a few narrow bractlets. Ribs of 

 the ovate fruit slightly prominent.— N. W. only. 

 20'. OsiuoiTlii'zn. Leaves large, 2-3-ternately compound. Flowei-s 

 white. Fruit linear-oblong, angled, tapering downwards into a 

 stalk-like base. Eibs of the carpels bristly upwards. 



21. Co'iiiiiiii. Leaves large, decompound. Flowers white. Fruitovate, 



flattened at the sides, 5-ribbed, the ribs wavy. 



% 3. Inner face of each seed curved inwards at top and bottom. 



22. Erige'ula. Stem low and smooth. Leaves 2-3-tcrniiteIy divided. 



Fruit twin. Carpels nearly kidney-torm. Umbels 3-rayed, small. 

 Flowers white. 



