SELECT LISTS OF PLANTS. 265 



the open ground, the most certain mode is to pot a iew plants and place 

 them in a greenhonse, and after they have made a new growth of two 

 or three inches take ofi the young, succulent tips of the branches for 

 cuttings, planting them in sand under bell glasses, or ii^ a close frame, 

 where they can be given bottom heat, applying water overhead daUy 

 with a syringe or watering pot, through a fine rose. Cuttings of the 

 species commonly known as Jietinispora plumosa may be made of the 

 size and form shown in figure 97. Varieties may also be propagated by 

 grafting, using closely allied species for stock. Veneer grafting under 

 glass is the best mode. 



Chilopsis (Desert WiQow). — A genus represented by one species, 

 indigenous to Texas and westward to Southern Cahf omia. A slender- 

 growing, small tree, bearing Bignonia-like flowers. Keadily propagated 

 by seed, or by ripe wood cuttings, planted in the open ground in warm 

 climates, or imder glass in cold ones. 



Chionanthus (White Fringe Tree). — Hardy, native, deciduous 

 shrubs,' cultivated for their piu'e white, fringe-like flowers. Propagated 

 by seeds sown in the autumn as soon as ripe ; by budding and grafting 

 on the common Ash. (See Fraxin, Chapter XVIII.) 



Choisya. — Only one species, and this (native of Mexico) a beautiful 

 shrub hardy only at the South. Propagated by ripened cuttings, 

 planted in a half-shady position and in rather light soU. 



Chrysobalanus (Coco Plum). — Small semi-tropical shrubs bearing 

 edible fruit. Two species indigenous to Florida. Propagated by seed 

 and cuttings of the mature branches, planted in a half-shady position 

 and given plenty of water overhead during dry weather. 



Citrus (Orange, Lemon, Shaddock). — Semi-tropical evergreen trees, 

 bearing in their improved state edible fruit. Propagated by seed, bud- 

 ding and grafting in the open air in warm climates, but in cool ones 

 under glass, and usually by veneer grafting. (See Fruit Stocks.) 



Cladrastls (TeUow-Wood, Virgilia). — A genus of only two species 

 of large, free-growing, deciduous, ornamental trees. One species is 

 ind^enous to Kentucky and Tennessee (C. tirutoria), and the other 

 (C. amurensis) to the Amoor regions of Asia. Propagated by seeds sown 

 in spring or autumn, and by cuttings of the roots prepared in the 

 autumn and packed in moss or clean sand and stored in a cool cellar 

 nntU spring. 



Clerodendron. — ^A large genus, mostiy tropical and semi-tropical 

 shrubs and vines, bearing bright-colored flowers in long, terminal pan- 

 icles. Some of the most showy species require a high temperature ; 

 others will thrive in an ordinary greenhouse, whUe one Japanese species 

 is said to be hardy in England. Propagated by seed sown as soon as 

 ripe ; by cuttings of the somewhat mature wood in close frames. 



Clethra (White Alder, Pepperidge, Etc.) — Ornamental, deciduous 

 ehrubs, two or three species indigenous to the United States, and often 



