XV 



S9a. Tall shrubs; leaflets entire or minutely toothed 



Ib, in RUTACEAE, p. 65. 

 89b. Shrubs 2 m. high or less; leaves conspicuously toothed 90. 



90a. Stipules present 17b, in ROSACEAE, p. 53. 



90b. Stipules none Ib, in ANACARDIACEAE, p. 68. 



Ola. Leaflets 625 mm. long 92. 

 91b. Leaflets 30 mm. long, or more 93. 



92a. Leaflets mostly 5, rarely 3 or 7 7a, in ROSACEAE, p. 52. 



92b. Leaflets mostly 9 19, 15 mm. long or more 



26a, in LEGUMINOSAE, p. 60. 



92c. Leaflets mostly 25 45, less than 15 mm. long 



8a, in LEGUMINOSAE, p. 58. 



93a. Leaflets entire 3a, in ANACARDIACEAE, p. 68. 



93b. Leaflets entire, except for 1 4 large glandular teeth near their 

 base SIMARUBACEAE, p. 65. 



93c. Leaflets toothed throughout 94. 



94a. Juice milky la, in ANACARDIACEAE, p. 68. 



94b. Juice not milky 3a, in ROSACEAE, p. 51. 



95a. Leaves minute, scale-like, appressed 2a, in CISTACEAE, p. 74. 

 95b. Leaves 310 mm. long, spreading, completely rolled into a tube 



EMPETRACEAE, p. 68. 

 95c. Leaves normal in shape, green in color 96. 



96a. Leaves evergreen, as shown by their presence on the older 

 parts of the stem 4b, in ERICACEAE, p. 84. 



96b. Leaves deciduous 97. 

 97a. Stems or branches thorny 98. 

 $7b. Stems or branches without thorns or thorny leaves 103. 



98a. Leaves conspicuously palmately veined 99. 



98b. Leaves pinnately veined, or sometimes with smaller Iatera4 



veins arising from the end of the petiole 100. 



9a. Leaves 5 cm. wide or less la, in SAXIFRAGACEAE, p. 49. 



99b. Leaves 15 cm. wide or more la, in ARALIACEAE, p. 80. 



lOOa. Leaves entire 5a, in SOLANACEAE, p. 100. 



lOOb. Leaves toothed or somewhat lobed 101. 



lOla. Leaves with bristly margins; some of the thorns three-pointed 



2a, in BERBERIDACEAE, p. 40. 

 lOlb. Leaves not bristly on the margin;- thorns not branched 102. 



102a. Only lateral thorns present 41b, in ROSACEAE, p. 54. 



102b. Only terminal thorns present 2a, in RHAMNACEAE, p. 71. 

 I03a. Leaves palmately veined, or with one or more pairs of lateral 



veins from the base of the leaf 104. 

 103b. Leaves pinnately veined 111. 



104a. Leaves entire 105. 



104b. Leaves toothed 106. 



104c. Leaves palmately lobed 108. 



