128 HARDY ORNAMENTAL 



Philadelphia (Saxifrageae), 



PHILADELPHIA CORONARIUS. Mock Orange, or Syringa. 

 South Europe, 1596. A well-known and valuable garden 

 shrub, of from 6 feet to 10 feet high, with ovate and ser- 

 rulated leaves and pretty racemes of white or yellowish-white 

 fragrant flowers in May. P. coronarius aureo-variegatus is 

 one of the numerous forms of this shrub, having brightly- 

 tinted, golden foliage, but the flowers are in no way 

 superior to those of the parent. It is, if only for the 

 foliage, an extremely pretty and distinct variety. P. coro- 

 narius argenteo-variegatus has silvery-tinted leaves; P. 

 coronarius flore-pleno, full double flowers; and P. coro- 

 narius Keteleeri flore-pleno is the best double-flowered 

 form in cultivation. 



P.GORDONIANUS (syn P.californicus), an American species 

 (1839), is a well-known and beautiful shrub, in which the 

 flowers are usually double the size of those of the common 

 species, and which are not produced till July, while those 

 of P. coronarius appear in early May. 



P. GRANDIFLORUS (syns P. floribundus, P. latifolius, and 

 P. speciosus). Southern United States, 1811. This has 

 rotundate, irregularly-toothed leaves, and large white, 

 sweetly-scented flowers produced in clusters. It forms a 

 stout bush 10 feet high, and as much through. There 

 are two varieties, P. grandiflorus laxus, a beautiful shrub, 

 wreathed with large, pure white flowers, which are 2 inches 

 across, and being loosely disposed, their individual beauty 

 is greater than those of the type. They are also produced 

 about ten days later. P. grandiflorus speciosissimus is 

 another distinct and pretty kind. 



P. HIRSUTUS. North America, 1820. Another handsome, 

 small-flowered species, of dwarf growth, and having hairy 

 leaves. The white flowers are produced in threes. 



P. INODORUS, also from North America (1738), differs 

 little in size and shape of flowers from P. grandiflorus, but 



