966 ARBORETUM ET FRUTICETUM BRITANNICUM. 
1789. P. Pinca. 
gently moist, till the spring ; when most of the seeds will come up, though 
some will remain in the ground till the second year. Their tardy germination 
is owing to the thickness of the shell of the seed, which some cultivators 
break before sowing, though at the risk of injuring the seed. The plants 
which come up should be transplanted into small pots, after midsummer of 
the same year, or, at all events, not later than the following spring ; and, for 
two or three years, they should be kept during winter in a frame, quite close 
to the glass. The plants are very tender for the first two or three years; but 
in the fourth and fifth years they will endure the open air, in the climates of 
