THE NURSERY LIST. jyg 



Disporum, including Prosartes. Liliacece. 



Seeds may be used ; or the plant may be divided in spring 

 before active growth commences. 

 Dodecatheon, Meadia (American Cowslip). Prinmlacece . 



Seeds. The crowns may be divided either in spring or 

 autumn. Cuttings of the whole root can be effectively used, 

 the root being torn off the crown, planted upright, and of 

 course covered with the sandy soil commonly used in this 

 form of propagation. 

 Dog's Bane. See Apocynum. 

 Dog's-tooth Violet. See Erythronium. 

 Dogwood. See Cornus. 

 Dolichos. Leguminosce. 



By seeds. Sometimes cuttage or layerage is resorted to. 

 Dorcoceras. See Baea. 

 Doronicum, including Aronicum (Leopard's Bane). Composite?. 



Propagated by seeds and divisions. 

 Dorstenia. Urticacece. 



Seeds may be sown in a hot-bed in early spring. Before 

 active growth commences the plants may be divided. 



Doryanthes. Amaryllidece. 



Propagated by suckers placed in small pots. 

 Dorycnium, including Boujeania. Leguminosce. 



Increased by seeds. 

 Downiugia, Clintonia. Campanulacece. 



Seeds should be sown in mild heat in spring. 

 Draba, including Petrocallis (Whitlow Grass). Crudferce. 



The annuals or biennials propagated by seeds sown in 

 spring in the open border. The perennials may be propa- 

 gated by dividing the crowns. 

 Dracaena (Dragon-tree). Liliacece. 



Rarely grown from seed. Layers do not succeed very 

 well. The stems of old plants may be cut up in pieces one 

 or two inches long, and placed at any season in cocoanut 

 fiber or light soil, in the bottom heat of a propagating house. 

 The tops of the plants will also strike as cuttings, and the 

 fleshy base of the stem is sometimes removed and used for 

 propagation. Root cuttings do well in a moderate heat. 

 (See Fig. 47.) 



