304 THE NURSERY-MANUAL 



Drosera (Sundew). Droseracece. 



Increased by seeds, sown soon after gathering. The root may 

 be divided ; or rhizomes may be made into cuttings an inch or 

 less long, which root in two or three weeks in a propagating-box. 



Drosophyllum. Droseracece. 



Grown from seed ; probably can be propagated much as drosera. 



Duranta. Verbenacece. 



Propagated by cuttings in spring ; also by seeds. 



Dyckia. Bromeliacece. 



Propagated^ by suckers or offsets. See Billbergia, page 252. 



Ecballium (Squirting Cucumber). Cucurbitaceoe. 



Treated as an annual, and grown readily from seeds sown indoors 

 or in the open when the weather is warm ; tender. 



Eccremocarpus (Calampelis). Bignoniaceoe. 



Propagated by seeds in spring in mild heat. Cuttings may be 

 made of green or ripe wood. 



Echeveria. Crassulaceos. 



Propagation by cuttings of stems and leaves as for cotyledon, 

 which see. By many botanists the two genera are united. 



Echinacea. Composites. 



Readily multiplied by seeds and division. 



Echinocactus. Cactacece. 



Propagation by seeds, in May or June. If well ripened, seeds 

 at this time of year should germinate in a week or less. Sow in 

 4-inch pots in finely sifted mixture of leaf -mold, loam, and charcoal 

 dust and silver sand. See Cactus, page 261. 



Echinocereus. Cactaceoe. 



As for cere us ; see also Cactus, page 261. 



Echinops (Globe Thistle). Composite. 



Seeds sown in spring are used for the biennials, and early division 

 for the perennials ; also increased by root-cuttings. 



