-like or scale-like, mostly evergreen --54.

155b. Leaves broader, flat or rolled, but not needle-like or scale-like
--156.

156a. Twining or climbing vines --56.

156b. Not twining or climbing --157.

157a. Leaves opposite --158.

157b. Leaves alternate --165.

158a. Leaves compound --68.

158b. Leaves simple --159.

159a. Leaves broad, palmately lobed --160.

159b. Leaves not palmately lobed --161.

160a. Flowers greenish-yellow, in racemes or panicles
2a, in =ACERACEAE=, p. 70.

160b. Flowers white, in rounded or flattened clusters
22a, in =CAPRIFOLIACEAE=, p. 111.

161a. Flowers in close clusters, subtended by four large white
petal-like bracts 4b, in =CORNACEAE=, p. 83.

161b. Flowers small, white, in dense spherical heads
1a, in =RUBIACEAE=, p. 108.

161c. Flowers not in dense heads, and not subtended by petal-like bracts
--162.

162a. Petals separate from each other --163.

162b. Petals united with each other --164.

163a. Flowers dark purple-red 1b, in =CELASTRACEAE=. p. 69.

163b. Flowers bright yellow 1a, in =HYPERICACEAE=, p. 73.

163c. Flowers pink-purple; aquatic shrubs 1a, in =LYTHRACEAE=, p. 77.

163d. Flowers white 5, in =CORNACEAE=, p. 83.

163e. Flowers minute, greenish; twigs usually thorny
1b, in =RHAMNACEAE=, p. 71.

163f. Flowers small, yellowish; leaves silvery beneath
=ELAEAGNACEAE=, p. 77.

164a. Stamens 2 1a, in =OLEACEAE=, p. 88.

164b. Stamens 4 or 5 11, in =CAPRIFOLIACEAE=, p. 110.

164c. Stamens 10 18a, in =ERICACEAE=, p. 85.

165a. Leaves once-compound --166.

165b. Leaves simple --172.

165c. Leaves twice- or thrice-compound 4a, in =ARALIACEAE=, p. 80.

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

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

167a. Stems thorny 1a, in =RUTACEAE=, p. 65.

167b. Stems not thorny --168.

168a. Leaflets 3, entire or minutely toothed
1b, in =RUTACEAE=, p. 65.

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