14 DICOTYLEDONOUS PLANTS. 



with 1-style. A. monogyna Walt. Cimiqfuga serpentaria Pursh. C. 

 racemosa Nutt. and Torr. Mawotys serpentaria Rqf. and Eat. 



HAB. Woods. Can. to Flor. July, Aug. If. Stew 45 feet 

 high. Racemes 6 10 inches long, somewhat panicled. f 'loit- 

 ers nearly white. Has a very fetid smell. Medicinal. 



Black Snake-root. 

 * Carpel 1, not dehiscent. 



2. A. rubra WtUd. : leaves twice and thrice ternate ; raceme hemis- 

 pherical ; petals shorter than the stamens, acute ; pedicels of the fruit 

 smaller than the peduncle ; berries shining, red, many seeded. A. 

 spicata Mich. A. brack ypetala De Cand. A. americana, var. rubra Pursh. 



HAB. Woods. Can. to Car. May. !. Stem 2 feet high. Pinc- 

 ers white. Berries red and shining. Red Cohosh. 



3. A. alba Big. : leaves twice and thrice ternate ; raceme oblong ; 

 petals equal to the stamens ; pedicels of the fruit as large as the pe- 

 duncle; berries white, few-seeded. A. spicata, var. alba Mich. A. ame- 

 ricana, var. alba Pursh. A. packypoda Ell. 



HAB. Woods. Can. to Car. May. If. Pedicels shorter and 

 thicker than in the preceding. Berries milk-white, tipt with 

 red, smaller than in A. rubra. 



14. ZANTHORIZA. Lain. 



Calyx deciduous, 5-sepalIed. Petals 5. Capsule 2 3 

 seeded, by abortion 1-seeded. Pentandria. Polygynia. 



Z. apqfotia UHerit. 



HAB. Banks of streams. Penn. to Geor. May. *>. Suffruticose. 



Root large, yellow. Stem 2 3 feet high. Leaves bipinnate. 



Flowers m panicles, dark purple. Yellow Root. 



ORDER II. MAGNOLIACE^E. De Cand. Lind. 



Sepals 3 6, deciduous. Petals 3 27, hypogynous, in 

 several rows. Stamens indefinite, distinct, hypogynous. An- 

 thers adnate, long. Ovaries numerous, simple, arranged up- 

 on the torus above the stamens, 1-celled. Style short. Stig- 

 ma simple. Fruit either dry or succulent, consisting of nu- 

 merous carpels, which are arranged upon an e longated axis. 

 Seeds solitary or several, attached to the inner edge of the 

 carpels. Embryo minute, at the base of a fleshy albumen. 



Trees or Shrubs. Leaves alternate, coriaceous. Flowers 

 large, solitary, often odoriferous. 



1. MAGNOLIA. Linn. 



Sepals 5. Petals 6 9. Carpels 2-valved, 1-seeded, im- 

 bricated in a cone. Seeds pendulous, arillate. 



Polyandria. Polygynia. 



