KEYS TO THE GENERA 37 



* Flowers conspicuous and irregular, lopsided or 2-lipped. (K.) 



K. Flowers more or less in pairs, never blue ; fruit berries. Lonfcera 



,(p. 230). 

 K. Flowers large, showy, nearly white ; fruit long capsules with 



winged seeds. Cat^lpa (p. 286). Childpsis (p. 286). 

 K. Flowers small, blue. Tetiorium (p. 294) . Rosmarinus (p. 294). 



* Flowers inconspicuous. (L.) 



L. Leaves heart-shaped with about 5 basal ribs. Cercidiphyllura 



(p. 62). 

 L. Leaves not distinctly heart-shaped ; fruit fleshy. (M. ) 

 M, Leaves with silvery scales.' Sheph^rdia (p. 303). 

 M. Leaves without silvery scales, evergreen. Olea (p. 282). 

 Osmiinthus (p. 282). Buxus (p. 306). Ficus (p. 308). 

 PhoradSndron (p. 306). 

 M. Leaves without silvery scales, deciduous. Symphoricd,rpos 

 (p. 228). 



Key 2. Leaves opposite (or whorled), simple with notched but not 

 robed edges. 



(For small-leaved plants, leaves under 1 inch long, use Key 9, p. 51.) 

 Key based mainly on leaves. The numbers refer to the pages. 



* Leaves thick and plainly evergreen. (A.) 



A. Almost stemless plants with nodding waxlike flowers | inch 



broad. Chim4phila(p. 265). 

 A. Low plants with small broadly spreading white flowers and 

 1-seeded berries hanging on through the year. Ardlsia (p. 368). 

 A. Taller shrubs. (B.) 

 B. Leaves under 3 inches long. Abulia (p. 237). Euonymus 



(p. 91). 

 B. Leaves over 3 inches long ; fruit berry-like or 1-seeded cherry- 

 drupe-like. (C.) 

 C. Flowers small, white, fragrant with a tube and a 4-lobed 

 spreading border, salver-shaped. Osmtothus (p. 282). 

 6lea (p. 282). 

 C. Flowers small, white, united at base and broadly spreading. 



Vibiirnum (p. 219). Ardisia (p. 268). 

 C. Flowers small, dull purple; leaves often mottled. Auctiba 

 (p. 218). 



* Leaves thinner and deciduous. (D.) 



D. Leaves rather heart-shaped and basal- or radiate-ribbed. (E.) 

 B. Leaves . slightly notched, about 5-ribbed. Cercidiph^llum 



(p. 62). 

 B. Leaves distinctly notched, (F.) 



