310 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 
difference of origin would be translated into a difference of width in the 
leaves. . 
Another hypothesis which appears to me to be perfectly justified. The 
laciniate Persian Lilac, fig. 114, is the true type of the species: its 
habit, the form of its leaves, its inflorescence, its odour (but little agreeable), 
Fie, 121,—SyrinGa (puBIA) VARINA DUPLEX. 
taised by Monsieur Lemoine from 8. persica laciniata 9? x 8. vulgaris 2. 
Showing the occasional occurrence of lobed Leaves. 
are absolutely typical characters. Furthermore it is regularly and 
naturally fertile. 
It appears to me very difficult to admit that the two other forms of 
the Persian Lilac, of which one, that with rose-coloured flowers, has 
been up to now considered the type of the species, fig. 118, are varieties 
