and citron. It is of hybrid origin, and is probably the 
offspring of hybrid parents for several generations, be- 
ing related to P. crispum and P. hermannifolium, and 
many others of the same tribe ; but what its real pa- 
rents were is not easy to be ascertained. Like the 
more common kinds, it will thrive well in a mixture 
of sandy loam and peat, or any other light vegetable 
soil ; and young cuttings of it will soon strike root, 
if planted in pots and placed in a sheltered situation. 
