KEYS TO THE CENERA 49 



F. Leaves deciduous. (I.) 



I. Flowers large, i inch or more. (J.) 

 J. Flowers usually over 2 inches wide of 5 petals and many sta- 

 mens. Stuartia (p. 80). Gordonia (p. 80). 

 J. Flowers bell-shaped, ^-1| inches. Styrax (p. 270). IIal6sia 



(p. 272). 

 J. Flowers with long stamens making feathery bloom. Neviusia 



(p. 171). 

 J. Flowers under 2 inches wide of 5 petals, (K.) • 



K. Fruit fleshy. Amelanchier (p. 180). C'rat*gus (p. 173). 



Primus (p. 142). Pyrus (p. 182). 

 K. Fruit dry. Spirsa (p. 146). Exoch6rda (p. KJl). 

 I, Flowers small, under ^ inch wide. (For inconspicuous flowers 

 see next I.) (L.) 

 L. Flowers of 4-9 petals, slightly united at base, and as many 



stamens; fruit berries. Ilex (p. 86). 

 L. Flowers of 5 petals and many stamens, or double. Spirgea 

 (p. 146). Primus (p. 142). Pyrus (p. 182). Photi'nia 

 (p. 179). itea (p. 201). 

 L. Flowers open bell-shaped. Zenobia (p. 253). Fothergflla 



(p. 203). 

 L. Flowers globular, tubular, or urn-shaped. (M.) 

 M. Fruit a capsule. Andr6meda (p. 249). 

 M. Fruit berries with 10 or more seeds. Gayluss^cia and 

 Vaccinium (p. 244). 

 L. Other small white flowers on deciduous shrubs. Ceanothus 

 (p. 97). Cl^thra (p. 265). Baccharis (p. 241). 

 I. Flowers inconspicuous by lack of size or color. tJlmus 

 (p. 308). Rhamnus (p. 93). Zizyphus (p. 99). 



Key 7. Leaves alternate, simple with lobed edges. 

 * Plants without thorns. (A.) 

 A. Leaves with radiate ribs and 3-7 notched lobes. (B.) 

 B. Fruit fleshy. (C.) 



C. Leaves very large, 5 inches or more broad. Ficus (p. 308). 

 F&tsia (p. 212). 



C. Leaves smaller ; fruit a globular berry under 1 inch. Ribes 

 (p. 201). 



B. Fruit dry. (D.) 



D. Flowers large, over 2 inches broad. Hibiscus (p. 81). 

 D. Flowers snniU, under 1 inch. Pliysocari)Us (p. 158). 



A. Leaves with radiate ribs and 2-3 unnotched lobes. (E.) 

 apgar's shrubs — 4 



