l8o THE NURSERY-BOOK. 



Dracocephalum (Dragon's Head). Labiatce. 



The annuals are grown from seeds, sown in the open in 

 spring. Perennials are increased by dividing the roots, or 

 by cuttings of the young shoots in spring. 



Dracontium. See Amorphophallus. 

 Dragon's Head. See Dracocephalum. 

 Dragon-tree. See Dracaena. 

 Drimys, Wintera. Magnoliacece. 



Cuttings made of half-ripened shoots should be inserted 

 in a frame. 



Drosera (Sundew). Droseracece. 



Seeds, sown as soon as possible after gathering. D. bi- 

 nata is increased by cutting roots from strong plants into 

 pieces of one-half or one inch in length, and placing them on 

 the surface of shallow earthenware pans, in sandy peat soil, 

 and covering about one-half inch deep with the same mater- 

 ial. They are then placed under a bell-glass, and trans- 

 ferred to a damp, warm propagating house. 



Drosophyllum. Droseracece. 

 Propagated by seed. 



Dutchman's Pipe. See Aristolochia. 

 Duvaua. Anacardiacece. 



Insert cuttings made of the ripe wood under glass, in gen- 

 tle heat. 



Dyckia. Bromeliacece. 



Propagated by seeds, suckers and divisions. 

 Eccremocarpus (Calampelis). Bignoniacece. 



Seeds, sown in spring, in a gentle heat. Cuttings may be 

 used, of green or ripe wood. 



Echeveria. See Cotyledon. 

 Echinacea. Compositce. 



Readily propagated by seeds and division. 

 Echinocactus. See Cactus. 

 Echinops, Echinanthus (Globe Thistle). Compositce. 



Sow the seeds in spring for the propagation of the bien- 

 nials, and divide the perennials early. Also by root cuttings. 



