Order 1.— THE CEOWFOOTS. 149 



6. OAL'THA. Marsh Marigold. 



Calyx colored, of 5 roundish sepals resembling petals. OoroUa 0. Sta- 

 mens 00. Follicles 5-10, oblong, compressed, erect, many-seeded. — 

 U Smooth marsh plants. 



O. palus'tris. Oowilvps. Marsh Marigold,. }n wet meadows. Eoot large, thick. 



Stem about If. high, hollow, rouud, branched. Leaves large (4^6' wide), 



roundish, cordate, erenate — lower on long, half-round petioles, upper sessile. — 



' all of a dark, shining green, and very smooth. Flowers of a golden yellow in 



all their parts, li' broad. Outer row of stamens club-shaped, long. /Spring. 



7. OOP'TIS. Gold-thread. 



•Oalyx of 5 or 6 oblong, colored sepals. Corolla of 5 or 6 sniall club- 

 shaped sepals, hollow and J-lipped at top. Stamens 20-25. FoUioles 5- 

 10, stalked, beaked, spreading, 4-6-seeded. — U Herbs with radical leaves, 

 and long, creeping root-stocks. 



O. trifo'lia. Gold-thread. Leaves 8-foliate, all radical, the divisions broad, 4r-8" 

 loDg,"orenate, smooth shining, sessile. Petiole 1-2' long. Stems underground, 

 creeping extensively, bright yellow, and very bitter. Peduncles 3-4' high, 

 each 1-flowered. Calyx white. Petals yellow, ijiuoli smaller than the sepals, 

 barely distinguishable among the stapiens by their color. Maif. 



8. TEOULIUS. Globe-flower. 



Calyx of 5, 10, or IS concave sepals colored like petals. OoroUa of 

 5-25 small, linear petals, which are tubular at base. Stamens many, 

 much shorter than the sepals. Pods many, each many-seeded. — 2t 

 smooth, with palmately-parted -leaves. 



1 T. lazns. American G. Sepals 5. Petals 15-25, shorter than the stamens. 



Grows in swamps, M. •/•. Calyx yellow, greenish outside. June. 



2 T. EuroBEB'us. Suropean G. Sepals 10-15. Petals 5-10, aS long as the stamens. 



Flowers globular, bright yellow. + 



3 T. Asiat'icus. Asiatic G. Sepals 10, orange-colored. Petals 10, longer than sta- 



mens._ t 



9. AQUILE'GIA. Columbiue. 



Sepals 5, ovate, colored, spreading. Petals 5, tubular with a wide 

 mouth, the outer margin erect, the inner attached to the receptacle, and 

 behind extended into a long, spurred nectary. Stamens 30-40, the inner 



