THE NURSERY-LIST 273 



Celtis (Nettle-Tree). Ulmacea. 



Multiplied by seeds as soon as ripe ; by layers, and by cuttings of 

 ripened shoots in autumn. Rare kinds are sometimes grafted on 

 seedlings of C. occidentalis. 



Centaurea. Composites. 



Annuals are grown from seeds sown directly in the open or started 

 under glass. C. Cineraria and some others grown for foliage may 

 be raised from seeds in August, or from cuttings about the beginning 

 of September and carried over winter. The bachelor's button (C. 

 Cyanus) is best known and is an easily-grown annual from seed ; 

 often self -sows. 



Centradenia. Melastomaceas. 



Increased by cuttings at any time of the year. To obtain good 

 plants for the following winter, cuttings should be taken in February 

 or March. 



Centranthus. Valerianaceae. 



Propagated by seeds in spring, and by divisions. 



Cephalanthus (Button-Bush). Rubiacece. 



Propagated by seeds, layers, and mature cuttings in autumn ; 

 also by greenwood cuttings taken from forced plants early in 

 spring. 



Cephalocereus : Cactacece, page 261. 



Cerastium (Mouse-Ear Chickweed). Caryophyllaceoe. 



Raised by seeds and division, or by cuttings after flowering. 



Cerasus: Cherry, Prunus. 



Ceratonia (Carob). Leguminosas. 



Grown from seeds. On the seedlings, choice or named varieties 

 may be budded, the buds from bearing trees yielding fruit in three 

 to six or eight years. Seeds may be soaked in water three o/four 

 days to hasten germination. Cuttings may be struck in bottom 

 heat. 



Ceratopteris. Ceratopteridacece. 



Propagated by buds which arise from all parts of the leaves. 

 See Ferns, page 312. 



