SELECT LISTS OP PLANTS. 263 



mode, and it should not be done in sprtne; until the Gap in the Btock is 

 flowing rapidly and the buds have pushed almost into leaf. The cions 

 should be in a dormant state when inserted, and held in place with waxed 

 manilla paper, as waxed cloth does not allow of rapid expansion of the 

 stock when growth begins, and there is danger of strangulation. (For 

 Stocks, see Chapter XVIII.) 



Catalpa (Indian Bean). — A genus of handsome, rapid growing trees 

 and shrubs. Cultivated for ornament, and the very durable wood of the 

 larger growing species. Propagated by seed preserved dry during win- 

 ter and sown in spring lightly covered with fine, rich soil. The Catalpas 

 may also be readily propagated by gi-afting in spring, and by cuttings 

 of the one year old wood, made in the fall and bmied below the reach 

 of frost in the open gi-ound, or they may be presei-ved in a cool cellar 

 and then planted out in nursery rows early in spring. The Catalpa wUl 

 not grow from root-cuttings, as has been repeatedly stated in books on 

 forestry and the propagation of plants. 



Ceanothus (New Jersey Tea). — An interesting genus of low-grow- 

 ing, pubescent shi-ubs, witli small but pretty flowers. Of the twenty or 

 more species, all are natives of North America. Propagated by cuttings 

 of the ripe wood taken ofE in the autumn, and by layers. Some of the 

 o'pecies may be propagated by root-cuttings placed in a position where 

 they will form buds during the winter months. 



Cedrus (Cedar).— A small genus of cone-bearing trees, the Cedar of 

 Lebanon being the best known and most familiar representative. The 

 species are propagated by seed, sown as soon as taken from the very 

 close and compact cones, and in a half-shady position in a cool green- 

 house, or in frames in warm climates. The seeds wiU remain soimd for 

 many years if left enclosed in the cones, but soon lose their vitality after 

 removal. Varieties are usually propagated by veneer grafting under 

 glass, late in summer or early spring, using strong, pot-grown seedlings 

 for stocks. 



Celastrtis (Staff Tree, Bitter-Sweet). — A genus of climbing, decidu- 

 ous and evergreen shrubs, cultivated for their ornamental foliage and 

 fruit. All the species readily propagated by seed, layers, or cuttings of 

 the mature shoots. 



Celtis (Nettle Tree).— A small genus of mostly hardy, deciduous 

 trees and shrubs. The North American species are the largest, but not 

 of any special value. Propagated by seed sown as soon as ripe, and by 

 layers when the trees branch so low down as to admit of this mode of 

 propagation. 



Cerasus (Cherry, Laurel, Etc.)— A large genus of shrubs and trees, 

 mostly deciduous ; but there are two European and one American 

 species with persistent evergreen leaves. Propagated by seed sown as 

 soon as ripe, or stored in moist sand ; also by budding and grafting. (See 

 PiTinus andpheny, under head of Erult Tree Stocks). 



