50 KEYS TO THE GENERA 



E. Leaves with 2 equal lobes. (Found outdoors only South.) 

 Bauhfnia (p. 128). 



B. Leaves irregularly 2-3-lobed (sometimes without lobes). SSs- 

 safras (p. 296). 

 A. Leaves feather-veined. (F.) 



F. Some leaves without lobes, all with tapering bases. Bacoharis 

 (p. 241). 



F. Leaves fern-like with many side notches, aromatic. Comptbnia 



(p. 311). 

 F. Leaves silver-gray, finely divided, aromatic. Sautolina (p. 243). 

 F. Leaves triangular, with 5-9 notched lobes. Stephanandra 



(p. 163). 

 F. Other thornless shrubs with lobed leaves. Qu^rcus (p. 314). 



Primus (p. 142). Spirsea (p. 146). Bgtula (p. 311). 

 * Plants with more or less thorns or prickles ; fruit fleshy berries 

 (Ilex has spiny-edged leaves). Cratsegus (p. 173). Kibes (p. 201) . 

 Rdbus (p. 164) . Ilex (p. 86). 



Key 8. Leaves alternate, compound. 



* Leaveg of 3 blades. (A.) 



A. Plants thorny or prickly. (B.) 

 B. Fruit large, orange-like. Citrus (p. 86). 

 B. Fruit pea-like pods. Cytisus (p. 113). 

 B. Fruit blackberry-like. Rubus (p. 164). 

 B. Fruit 2— 5-seeded black rounded berry. AcanthopSinax (p. 212). 



B. Other prickly plants with 3-bladed leaves. R6sa (p. 166). 



A. Plants without thorns or prickles. (C). 



C. Flowers pea-shaped. Laburnum (p. 116). Lespedfeza (p. 124). 

 C. Flowers not pea-shaped, small. (D.) 



D. Fruit dry but somewhat berry-like in appearance ; leaves 



aromatic. Rhus (p. 107). 

 D. Fruit flat, wafer-like, I inch or more broad. Ptfelea (p. 84). 



* Leaves with an even number of blades, abruptly pinnate. (E. ) 



B. Flowers yellow or yellowish. Cassia (p. 128). CaragSina (p. 122). 



E. Flowers rosy. Halimod^ndron (p. 122) . 



* Leaves of 5 or 7 blades growing from nearly the same point, pal- 



mately compound. (P.) 



F. Blades entire ; flowers yellow, in summer. Potentflla (p. 164). 

 F. Blades somewhat notched ; plant thorny. Acanthopknax (p. 212). 



F. Blades irregularly cut. Zanthorhiza (p. 58'). 



* Leaves once odd-pinnate, blades an odd number. (G.) 



G. Plants thorny or prickly. (H.) 



