NEPHRODIUM NORWAY SPRUCE. Zf^ 



Nephrodium. See Ferns. 

 Nephrolepis. See Ferns. 

 Nerine (Guernsey Lily). AmaryllidacciT. 



Seeds, for new varieties. Commonly increased by 

 means of bulbels. 



Nerium (Oleander). Apocynacea: . 



Layers. Cuttings should be made of natural leading 

 shoots, inserted in single pots and placed in a close, warm 

 frame ; or they may be rooted in bottles of water and 

 afterwards potted in soil. See Fig. 6g a. 



Nertera. Ritbiacca; . 



Increased by seeds, divisions, or cuttings. Any small 

 portion will grow freely, especially if placed in a warm 

 iVame. 



Nettle-tree. See Celtis. 



New Zealand Flax. See Phormium. 



Nicandra. Solanacca:. 



Seeds, sown in the open border, or under glass in the 

 north. 



Nicotiana t^Tobacco). Solanacca:. 



Propagated by seeds, started under glass or in a care- 

 fully prepared seed-bed. The ornamental species some- 

 times by cuttings. N. alata [N. ajfinis of gardens) prop- 

 agates by root cuttings. Tobacco is handled essentially 

 liiie tomato plants. 



Nierembergia. Solanacca:. 



Grown from seeds, under glass. Cuttings of firm slioots 

 are also used. 

 Nlgella (Fennel Flower, Love-in-a-mist). Ranunciilacecc. 



Propagated by seeds sown in early spring in the open 



Nightshade. See Solanum. 



Nine-bark. See Spiraaa. 



Nolana. Convolvtilacccc. 



Seeds sown in the open border during spring. 



Norfolk Island Pine. See Araucaria. 

 Norway Spruce. See Picea. 



