288 THE NURSERY-MANUAL 



Convallaria (Lily-of-the-Valley). Liliacece. 



Handled by " crowns " or " pips," which are the separated grow- 

 ing points of the roots, possessing a strong bud. These crowns can 

 be obtained from any well-established bed in the fall, but they are 

 usually imported. Plants may be divided in spring. Fig. 56. 



Convolvulus (Bindweed). Conwhulaceae. 



Annuals and perennials ; the former are easily grown from seeds 

 sown in the open or under glass ; the latter by seeds, by cuttings 

 of young wood, and by division. 



Corchorus (Jute). Tiliacece. 



Annuals of warm countries easily grown from seeds ; others are 

 perennial and grown from seeds, cuttings and division, but they 

 are little known in cultivation. 



a 



Cordia. Boraginacece. 

 Increased by seeds, cuttings of firm wood in heat. 



Cordyline. Liliaceae. 



Seeds when obtainable ; cuttings ; root-cuttings ; air-layering. 

 The dracsenas of gardeners are cordy lines. They are readily 

 handled, as described by Eisele, by cutting the ripened stems or 

 trunks, from which all leaves have been removed, into pieces 2 to 

 4 inches long. These are laid either in very light soil or in sand in 

 the propagating-bed, where they receive a bottom heat of about 

 80, being barely covered with sand or moss. The eyes soon 

 start into growth, and, as soon as they have developed about six 

 leaves, these shoots are cut off with a small heel and again placed 

 in the propagating-bed until rooted, after which they are potted off 

 into small pots in light soil, kept close until they become established. 

 The plant known in the market as Draccena indivisa grows readily 

 from seeds. Figs. 68, 92, 104, 119. 



Coreopsis, Calliopsis. Composite. 



The annuals are readily grown from seeds started in the house or 

 sown directly in the open. The perennials are grown from seed, 

 by cuttings of growing wood in summer, and by division. 



Coriander (Coriandrum sativum). Umbelliferw. 

 Seeds are sown in fall or spring ; they grow readily. 



Corn : Maize. 



