224 THE NURSERY LIST. 



the emission of roots. Pot the young plants singly, and 

 grow on in a close but not high temperature, and after- 

 wards harden and keep rather cool during the following 

 autumn and winter, in order to thoroughly ripen the 

 wood. Grafted specimens may be treated in a similar 

 way. D. odora is propagated by ripened cuttings in a 

 cool house, in sand. Sometimes the old wood can be 

 used. The time is determined by the fitness of the wood. 



Darlingtonia. Sarraceniacea;. 



Increased by seeds, and by dividing the plants. Seeds 

 may be sown on the surface of well-prepared fibrous soil, 

 and then covered with dead sphagnum moss, rubbed 

 through a sieve. Give shade. 



Dasylirion. Liliacecr. 



Increased by seeds, suckers and cuttings. 



Date, Date VdXm. {Phoetiix dactylifcra). Palinacea-. 



The seeds from commercial dates grow readily, and 

 without the intervention of stratification. Special varie- 

 ties are propagated by a sort of cutting, made by remov- 

 ing and rooting the sprouts which appear about the base 

 of the tree. These root readily if taken oft" green and 

 liberally supplied with water. They often begin to bear 

 in five or si.x years. The species grown for ornament are 

 generally increased by suckers. 



Datisca. DatiscacccF. 



May be increased by seeds, and by dividing well estab- 

 lished plants. 



Datura, including Brugmansia and Stramonium. Solanacea. 



The annual species are propagated by seeds, which are 



started under cover in the north. The perennials are 



readily grown from cuttings in mild heat. Heeled shoots 



are usually preferred. 



Davallia. Filices. 



Propagated largely by division. .See Ferns. 



Day Lily. See Henierocallis and Funkia. 



Decumaria. Sa.vifragacecr. 



Seeds. Cuttings may l)e made in summer, and placed 

 under a frame in a shadv situation. 



