76 ORNAMENTAL GARDENING. 



Mock Orange (P. dianiliiflora) is another low-growing 

 variety of great beauty, with line, double, creamy-white, 

 fragrant flowers. 



There are several other species and varieties not vary- 

 ing greatly in general respects from the sorts above de- 

 scribed. The Large-flowering Mock Orange (P. grandi- 

 florus). Gordon's Late-flowering Mock Orange (P. 

 Gordonianus), Eed-twigged Mock Orange (P. sanguin- 

 eus), among older sorts, and P. laxus with very large 

 flowers ; P. 7iivalis, with snowy-white flowers, among 

 recent introductions, are perhaps entitled to special 

 mention on account of their merits. 



THE VIBURNUM. Vihumum, E.-G. 



This genus gives us a number of our most valuable 

 and interesting ornamental shrubs. They are perfectly 

 hardy, of easy growth in most any soil, and produce 

 both handsome foliage and flowers. For the sake of 

 variety some may readily be grown to a tree form. 



The Common Snowball or Guelder Rose ( V. Opulns 

 sferilis) is a well known variety, with large, globular 

 cymes of pure-white, sterile flowers, of a very showy 

 character, E. The High or Bush Cranberry ( V. Opidus) 

 is the original form of the Snowball, with coarser foliage 

 and habit of growth, and less showy flowers, the clusters 

 of which have only sterile flowers around the margin ; 

 those in the interior of the cyme are not showy, but are 

 followed by scarlet, acid fruit, sometimes used as a sub- 

 stitute for cranberries, E. A dwarf variety (var. nana) 

 forms a much smaller bush, H. 



The Japan or Dwarf Snowball {V. plica fum) is a 

 shrub of great merit, and is much finer than the common 

 Snowball, with whiter flowers of the same form, a dwarf 

 habit of growth and much handsomer foliage. The 

 leaves are firm, plaited, of a rich green, and contrast 



