70a, in =ROSACEAE=, p. 57.
150b. Stamens 6 =CRUCIFERAE=, p. 42.
150c. Stamens numerous 43, in =RANUNCULACEAE=, p. 39.
151a. Flowers in heads or umbels --152.
151b. Flowers in slender spikes or racemes --153.
152a. Styles 2 =UMBELLIFERAE=, p. 80.
152b. Styles 5 =ARALIACEAE=, p. 80.
153a. Leaves ternately compound 43, in =RANUNCULACEAE=, p. 39.
153b. Leaves once-pinnately compound 50b, in =ROSACEAE=, p. 55.
154a. Flowers irregular --155.
154b. Flowers regular --156.
155a. Stamens 2 40b, in =SCROPHULARIACEAE=, p. 104.
155b. Stamens 5 or 10 =SAXIFRAGACEAE=, p. 49.
155c. Stamens 6 or 8 =POLYGALACEAE=, p. 65.
156a. With sheathing stipules surrounding the stem at the base of
each leaf =POLYGONACEAE=, p. 24.
156b. Stipules not encircling the stem, or none --157.
157a. Petals 3 =CISTACEAE=, p. 74.
157b. Petals 4 --158.
157c. Petals 5 --161.
158a. Stamens 2 --159.
158b. Stamens 6 =CRUCIFERAE=, p. 42.
158c. Stamens 8 --160.
159a. Corolla perfectly regular; flowers in terminal clusters without
bracts, becoming racemes; taste peppery
52a, in =CRUCIFERAE=, p. 46.
159b. Corolla slightly irregular; flowers in bracted clusters, or
axillary; taste not peppery 40b, in =SCROPHULARIACEAE=, p. 104.
160a. Delicate trailing evergreen, with flowers solitary in the
axils and nearly or quite hidden beneath the leaves
22b, in =ERICACEAE=, p. 85.
160b. Erect or nearly so; flowers in terminal clusters
12b, in =ONAGRACEAE=, p. 78.
161a. Leaves sword-shape, finely parallel-veined, with bristly margins
2a, in =UMBELLIFERAE=, p. 80.
161b. Leaves not sword-shape --162.
162a. Leaves toothed or lobed --163.
162b. Leaves entire --164.
163a. Stems creeping 2b, in =UMBELLIFERAE=, p. 80.
163b. Stems erect or nearly so =SAXIFRAGACEAE=, p. 49.
164a. Flowers in open panic
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