228 THE NURSERY LIST. 



Dodecatheon (American Cowslip). Priniulacecr. 



Seeds. Thie crowns may be divided either in spring or 

 autumn. Cuttings of the whole root can be eiiectively 

 used, the root being torn off the crown, planted upright, 

 and covered with the sandy soil commonly used in this 

 form of propagation. 



Dog's Bane. See Apocynuni. 



Dog's-tooth Violet. See Erythronium. 



Dogwood. .See Cornus. 



Dolichos. Lcffiiininosir. 



By seeds. Sometimes cuttage or layerage is resorted to. 



Doronicum (Leopard's Bane). Coiiif^osifcr. 

 Propagated by seeds and divisions. 



Dorstenia. l/r/iiaicic. 



Seeds maybe sown in a hotbed in early spring. Be- 

 fore active growth commences, the plants may lie (li\ ided. 



Doryanthes. Ainaryllidacccc. 



Propagated by suckers placed in small pots. 



Downingia, Clintonia Lobeliaccir. 



Seeds should be sown in mild heat in spring. 



Draba (Whitlow Grassl. Ciiici/iTu-. 



The annuals or biennials are propagated bv seeds sown 

 in spring in the open border. The perennials may be 

 propagated by dividing the crowns. 



DraCcBna. See Cordyline. 



Dracocephalum (Dragon's Head). jMbiatcr. 



Tile annuals are grown from seeds, sown in the eipen 

 in spring. Perennials are increased by dividing the roots, 

 or by cuttings of the young shoots in spring. 



Dracontium. See Amorphophallus. 



Dragon-tree. See Cordyline 



Drimys, \Vintera. JLif^no/incecr. 



Cuttings made of half-ripened shoots should be inserted 

 in a frame. Seeds, when obtainable. 



