50 



Key 



SHRUBS 



I. Leaves compound. Page 



A. Leaves palmately compound. 



1. Leaflets generally 3. 



a. Leaflets spine-toothed Berberis— 82 



b. Leaflets not spine-toothed. 



(1) Leaflets entire Ptelea— 118 



(2) Leaflets not entire Schmaltzia— 127 



2. Leaflets generally 5. 



(1) Leaves opposite Aesculus — 129 



B. Leaves pinnately compound. 

 1. Leaves once-pinnate. 



a. Leaves mainly opposite. 



(1) Leaflets small, evergreen Porliera— 117 



(2) Leaflets large Sambucus— 200 



b. Leaves mainly alternate. 



x. Leaves without odd leaflet at end. 



(1) Branches thorny (Leaves are 2- 



pinnate, but appear 1-pinnate) Parkinsonia— 98 



(2) Branches not thorny Daubentonia— 102 



y. Leaves with odd leaflet at end. 



m. Branches prickly. 



a. Leaflets 3—5 Rubus— 90 



b. Leaflets 5—11. 



(1) Leaves aromatic Xanthoxylum— 



(2) Leaves not aromatic Rosa — 91 



c. Leaflets numerous. 



(1) Leaves on a flattened axis 



(Leaves really 2-pinnate) Parkinsonia— 98 



n. Branches not prickly. 



a. Leaflets 3. 



(1) Leaflets entire Ptelea— 118 



(2) Leaflets not entire Schmaltzia— 127 



b. Leaflets 3—7 Ungnadia— 130 



c. Leaflets more than 3 — 7. 



r. Leaflets leathery, evergreen Sophora — 99 



s. Leaflets not leathery, 

 (m) Leaflets unequal-sided. 



(1) Rachis winged Schmaltzia — 126 



(2) Rachis not winged Sapindus— 130 



(n) Leaflets not unequal-sided. 



(a) Rachis winged Schmaltzia — 126 



