KKY TO THE Sl'KCI KS OF VIBURNUM 



223 



FIG. 367. Hairy Laurestmus. 



KEY TO THE SPECIES OF VIBURNUM 



* Snowball group, with all the flowers enlarged and sterile and thus 



forming no fruit. (A.) 

 A. Leaves deciduous, smooth, feather-veined with notched edges but 



not lobed. (B.) 



B. Leaves finely notched, dark green above ; flower-clusters 7-8 

 inches broad. CHINESE SNOWBALL Viburnum macroce'pha- 

 lum sterile. 



B. Leaves coarsely notched and plaited ; flower-clusters 3 inches 

 broad. JAPANESE SNOWBALL (350) Viburnum tomentosum 

 plicatum. 



A. Leaves radiate-veined and broadly 3-lobed. SNOWBALL or GUEL- 

 DER ' ROSE' - - Viburnum Opulus sterile. 



* Mixed group ; some of the flowers fruit-producing but the marginal 



ones enlarged and sterile ; leaves deciduous. (C.) 

 C. Leaves without lobes ; drupes red becoming darker. (D.~) 



D. Leaves orbicular, somewhat heart-shaped, 3-8 inches broad. 

 HoBBLK-iii'sn, WITCH HOBBLE, or MOOSEWOOD (351) Vi- 

 burnum alnifolium. 



