42 KEYS TO THE GENERA 



F. Flowers large, J inch to several inches broad. (G.) 



G. Flowers very large with 0, 'J, or 12 fleshy petals. Magnolia 

 (p. 58). 

 • G. Flowers with 5 separate petals. Pittdsporum (p. 08). 

 G. Flowers cup-shaped with 10 stamens in dents of corolla. 



Kalmia (p. 256). 

 G. Flowers bell-shaped and slightly irregular, lopsided. Rho- 

 dodendron (p. 200). 

 F. Flowers smaller, generally under | inch broad (in Ackcia, 

 closely clustered so as to appear larger). (H.) 

 H. Flowers with the petals entirely separate or so nearly so as 

 to appear separate. (I. ) 

 I. Petals 5, white or nearly so. Lfedum (p. 203). Symplocos 

 (p. 273). Escallonia (p. 188). Cotoneaster (p. 170). 

 Cley^ra (p. 81). Photmia (p. 179). 

 I. Petals 6 ; flowers attached to the leaves. Ruscus (p. 323). 

 •I. Petals usually 4 (sometimes 5). Pitt6sporum (p. 08). 



Cyrilla (p. 89). 

 I, Petals 4 to 6, almost separate. Ilex (p. 86). Ardi'sia 

 (p. 208). Skimmia (p. 84). 

 H. Flowers with the corolla united into a globular bell or urn 

 form having a 5-lobed border. (J.) 

 J. Fruit dry 5-celled many-seeded capsules. Andr6meda 



(p. 249). 

 J. Fruit red berries. Arbutus (p. 249). Arctostaphylos 

 (p. 240). 

 H. Flowers tubular with a 4-lobed spreading border. Daphne 



(p. 298). 

 H. Flowers small in clusters, 5-parted and peculiar in form. 



Ceanothus (p. 97). 

 H. Flowers hidden in a globular or urn-shaped receptacle ; 

 juice very milky. Ficus (p. 308). 

 C. Leaves deciduous and not especially narrow nor as above given. 

 (K.) 

 K. Leaves very large, 5-12 inches long, ill-scented ; fruit large, 



fleshy. Asimina (p. 64). 

 K. Leaves with curved parallel side veins. C6rnus (p. 214). 



"Rhamnus (p. 93). 

 K. Leaves blunt and rounded at tip. Rhus C6tinus (p. 109). 



Spiryea (p. 140). 

 K. Leaves not as above. (L.) 



L. Flowers in catkins ; wood soft. Salix (p. 314). 

 L. Flowers large, | inch or more. (M.) 



