xxi 



165a. Leaves once-compound 166. 



165b. Leaves simple 172. 



I65c. Leaves twice- or thrice-compound 4a, in AEALIACEAE, p. 80 



166a. Flowers small, greenish or greenish-yellow 167. 

 166b. Flowers conspicuous, white, or brightly colored 170. 



I67a. Stems thorny la, in EUTACEAE, p. 65. 



167b. Stems not thorny 168. 



168a. Leaflets 3, entire or minutely toothed 



Ib, in EUTACEAE, p. 65. 



168b. Leaflets 3, conspicuously toothed 



Ib, in ANACAEDIACEAE, p. 68. 



168c. Leaflets more than 3 169. 



169a. Leaflets entire except for 1 4 large glandular teeth near their 

 base SIMAEUBACEAE, p. 65. 



169b. Leaflets entire, or toothed for their entire length 



ANACAEDIACEAE, p. 68. 



170a. Flowers with a single bright-blue petal 



8a, in LEGUMINOSAE, p. 58. 



170b. Flowers with several petals 171. 



171a. Flowers regular 3, in EOSACEAE, p. 51. 



171b. Flowers irregular, the upper petal the largest 



4, in LEGUMI1VOSAE, p. 58. 



172a. Leaves minute, scale-like, appressed 



2a, in CISTACEAE, p. 74. 



172b. Leaves 3 10 mm. long, spreading, completely rolled into 

 a tube EMPETEACEAE, p. 68. 



172c. Leaves normal in shape, green in color 173. 



173a. Leaves evergreen, as shown by their presence on the older parts 

 of the stem 4b, in EEICACEAE, p. 84. 



173b. Leaves deciduous 174. 



174a. Flowers in catkins, without petal-like parts 142. 

 174b. Flowers not in catkins, either with or without petal-like 

 parts 175. 



175a. Flowers small, inconspicuous, yellowish or greenish in color 



176. 

 175b. Flowers white or colored, with conspicuous petals 180. 



176a. Leaves broad and palmately lobed; stem thorny 



la, in AEALIACEAE, p. 80. 



176b. Leaves entire, toothed, or with 2 3 entire lobes; stem 

 not thorny 177. 



