SELECT LISTS OF PLANTS. 269 



most rapid and certain mode is by cuttings of the roots made in the fall, 

 kept in sand or moss over winter, then sown in drills early in spring. 

 The Chinese Quince ( C. Chinensis), is a very distinct species, bearing- fruit 

 of an enormous size, but it is scarcely edible. Propagated by seed, or 

 grafting on stocks of the common Quince. 



Cyrtlla. A genus of two species of evergreen trees ; one species is 

 found in the Southern States, and the other in the West Indies and 

 South America. Readily propagated by seed and cuttings planted in the 

 open ground in the South, or under glass in the North. 



Cyttsus (Scotch Broom, Etc.). A large genus of low, slender- 

 branched shrubs, bearing pea-shaped flowers. All indigenous to the 

 Eastern Hemisphere, and many of the species are known under such 

 local names as Scotch Broom, Irish Broom, Spanish Broom, etc. The 

 hardy species are readily increased by seeds and layers, and the tender, 

 or those cultivated in the greenhouse, by cuttings of the tender shoots 

 planted in close frames, or under a bell glass. 



Dacrydlum (Tear Tree). A genus of handsome coniferous ever- 

 green trees, from New Zealand, Tasmania and New Caledonia. All 

 tender, except in the extreme South. Propagated by cuttings of the 

 mature twigs planted in sand under glass, and by seed when it can be 

 obtained hi a fresh state. 



Daphne (Spurge Laurel, Mezereon). A highly-prized genus of low- 

 growing evergreen and deciduous shrubs. Some of the species, like 

 the common Mezereon (D. mezereum), and the Garland Flower (D. 

 Cncorwri), have been cultivated in this country for many years ; but 

 there are many other species, fully as hardy and valuable, that are 

 rarely or never seen in our gardens. All thrive best in a half-shady 

 position, as the leaves are likely to burn during the hot weather in sum- 

 mer. Propagated by seed, when these can be obtained, by layers, cuttings 

 and grafting ; the stronger-growing being used as stocks. D. Cneorum 

 is one of the very best of the hardy, low-growing species for cultivation 

 in this country, and it may be increased by layers put down in spring, or 

 by cuttings of the ends of the young shoots obtained from young plants 

 forced in winter, or even from cuttings of the nearly matured wood, if 

 taken off early in the fall and planted in a greenhouse where they will 

 receive only moderate heat not much above fifty-five or sixty degrees 

 while the callus is forming. Veneer grafting on stocks grown in pots 

 is the best mode, as with other evergreen shrubs. 



Darwinia. Handsome evergreen shrubs, indigenous to Australia. 

 Flowers large and showy, either red or white, produced in terminal 

 fascicles. Cultivated in greenhouses in cold climates. Propagated by 

 cuttings of the young succulent roots placed in a close frame. 



Dasyltron (Lily Tree). A genus of tall-growing dio3cious ever- 

 green shrubs, natives of Mexico, and only hardy at the South, but 

 they are fine, showy plants, adapted to greenhouse culture, although 



