Saxifrages Philadelphus. 185 



to 10 petals, numerous stamens, subulate filaments, and only 

 one style. Platycrater Sieboldii, syn. P. argiita, is a recently 

 introduced Japanese shrub with lanceolate dentate deciduous 

 leaves and white Philadelphus-like flowers, remarkable for the 

 4-valvate petals and 2 slender styles. 



7. PHILADELPHIA. 



Deciduous shrubs, differing from the last genus in having 

 larger often sweet-scented flowers, 4 or 5 imbricate petals, 

 numerous stamens, and slender filaments. The species, of which 

 there are about twelve, are natives of Central Europe, Hima- 

 layas, Japan, and North America. The Greek name of a shrub. 

 These beautiful hardy flowering shrubs are popularly known 

 under the name of Syringa (Seringat, French) or Mock Orange. 



1. Ph. cor onarius. This is the common European species, 

 of which there are several varieties in cultivation, including 

 a double-flowered one, and one with variegated foliage. It 

 grows from 4 to 8 feet high, with ovate acuminate serrulate 

 glabrescent leaves and racemes of creamy-white fragrant 

 flowers, appearing in May. 



2. Ph. Gordonianus (fig. 99). A very handsome and de- 

 sirable American species with flowers nearly double the size of 

 those of the common one. This does not bloom till the latter 

 end of June or beginning of July. 



Fig. 99. Philadelphus Gordonianns. (J nat. size.) 



3. Ph. grandiflorus, syn. Ph. speciosus. Ph. latifolius, etc. 

 A shrub 6 to 10 feet high. Leaves pubescent when young, 

 ovate-acuminate or nearly rotundate, irregularly toothed. 



