68b. Leaflets 3, conspicuously toothed
1b, in =ANACARDIACEAE=, p. 68.

168c. Leaflets more than 3 --169.

169a. Leaflets entire except for 1-4 large glandular teeth near their
base =SIMARUBACEAE=, p. 65.

169b. Leaflets entire, or toothed for their entire length
=ANACARDIACEAE=, 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 =ROSACEAE=, p. 51.

171b. Flowers irregular, the upper petal the largest
4, in =LEGUMINOSAE=, 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 =EMPETRACEAE=, 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 =ERICACEAE=, 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
1a, in =ARALIACEAE=, p. 80.

176b. Leaves entire, toothed, or with 2-3 entire lobes; stem not
thorny --177.

177a. Flowers in small axillary clusters; foliage not spicy-aromatic
--178.

177b. Flowers in clusters terminating last year's twigs; foliage
spicy-aromatic 1b, in =LAURACEAE=, p. 41.

178a. Petals none; sepals present 2b, in =RHAMNACEAE=, p. 71.

178b. Petals present but small --179.

179a. A stamen in front of each petal 2a, in =RHAMNACEAE=, p. 71.

179b. A stamen between each two petals =AQUIFOLIACEAE=, p. 69.

180a. Petals united with each other; stamens 8-10
24, in =ERICA