TREE AND SHRUB LIST 187 



CALLICARPA. French Mulberry. 

 SEEDS. Sow indoors in Fall. 



CUTTINGS. Soft wood in Spring. Place under bell jar or with 

 bottom heat. Hard wood cuttings also used. 



CALLUNA. Heather. 



(See Vaccinium, p. 218, and Erica, p. 69; these shrubs could, no 

 doubt, be propagated by the methods mentioned.) 

 SEED. 

 CUTTINGS. Green wood under glass. 



CALOPHACA. Lentil Shrub. 



SEEDS. Sow in Spring. Give good ventilation. 



GRAFTING. The Laburnum (Cytisus vulgare) is used as stock for 



C. wolgarica in order to make graceful trees; the cions are inserted 



at height of six feet or more. 



CALYCANTHUS. Sweet Shrub. 



Calycanthus laevigatus is much sold as C. floridas, but it does not have 

 the fragrance. C. floridus rarely seeds; C. Icevigatas frequently pro- 

 duces seeds. 



SEED. Sow thinly as the seed leaves are large. April. 



CUTTINGS. Soft wood in Summer or hard wood in Autumn. 



ROOT CUTTINGS. Bury roots in sand during Winter; toward Spring 

 cut up into inch lengths and start in greenhouse. 



LAYERS. Successful. 



CAMELLIA. 



CUTTINGS. Matured young wood with bottom heat. Summer. 

 GRAFTING. The single flowered stocks from seed or cuttings are best. 



CAMPHORA. Camphor. 



SEEDS. Seeds ripen in Florida in early Winter and should be sown 

 when ripe. 



CAMPSIS (Tecoma). Trumpet Creeper. 

 CUTTINGS. Soft and hard wood. 

 ROOT CUTTINGS. Of the C. radicans. 

 GRAFTING. The yellow flowered variety is grafted upon the type. 



CARAGANA. Siberian Pea Tree. 



*SEEDS. Keep until Spring before sowing, then soak in warm water 



48 hours. 

 GRAFTING. C. arborescens seedlings are used as stocks. When five 



to six feet tall the stocks are worked with the weeping or pendulous 



sorts. 



LAYERS. Easy in Summer. 

 ROOT CUTTINGS. Made in Spring or Winter. 



CARPINUS. Hornbeam. Blue Beech. 



*SEEDS. Sow as soon as ripe; seeds germinate very unevenly. Keep 

 soil moist by covering bed. Another method is to mix seeds with 

 moist sand and keep in flower pot or box for a year. Sow in Au- 

 tumn; the seed grows the next Spring. 



GRAFTING. Seedlings of C. caroliniana (americana) or C. betulus 

 are used for the cut-leaved and Oak-leaved sorts. 



