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

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

95b. Leaves 3-10 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.

97b. Stems or branches without thorns or thorny leaves --103.

98a. Leaves conspicuously palmately veined --99.

98b. Leaves pinnately veined, or sometimes with smaller lateral
veins arising from the end of the petiole --100.

99a. Leaves 5 cm. wide or less 1a, in =SAXIFRAGACEAE=, p. 49.

99b. Leaves 15 cm. wide or more 1a, in =ARALIACEAE=, p. 80.

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

100b. Leaves toothed or somewhat lobed --101.

101a. Leaves with bristly margins; some of the thorns three-pointed
2a, in =BERBERIDACEAE=, p. 40.

101b. 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.

103a. 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.

105a. Foliage fragrant when crushed; leaves ovate
1b, in =LAURACEAE=, p. 41.

105b. Foliage not aromatic; leaves heart-shape
3b, in =LEGUMINOSAE=, p. 58.

106a. Lateral veins straight and parallel, running to the teeth of
the leaf 3a, in =BETULACEAE=, p. 22.

106b. Lateral veins curved or branched, and not running straight to
the teeth --107.

107a. Tall shrubs with somewhat milky juice and broadly ovate leaves
2b, in =URTICACEAE=, p. 23.

107b. Low shrubs less than 1 m. high with watery juice
1b, in =RHAMNACEAE=, p