258 PEOPAGATION OF -PLAIfTS, 



buds are forming. The boxes may then be placed In a position where 

 the cuttings will get a little bottom heat, which will force out the buds 

 and sprouts. When the young plants are of sufficient size to handle 

 readily, they may be potted ofi, using two or thi-ee inch pots. The time 

 to make root-cuttings is after the plants have ceased flowering, or when 

 they are in a semi-dormant state, as they usually are during the latter 

 part of winter. Cuttings of the young terminal and side shoots, when 

 about two inches long, ai-e in the best condition for striking, and i£ 

 placed in pm-e sand in close frames, or under bell glasses, the larger 

 proportion can be made to grow, but the plants are so easUy propagated 

 by root-cuttings that our florists depend mainly upon this mode for in- 

 creasing their stock of Bouvardiajs. 



Brotissonetia (Paper Mulberry). — Only one species, of which there 

 are several varieties in cultivation. All low-growing trees from China. 

 Propagated by seed, cuttings of the matui-e wood taken off in the fall 

 and stored during winter in a moderately warm place. Also increased 

 by layers, suckers and cuttings of the roots. 



Buocus (Box Tree). — ^A genus of well-known, hardy evergreen trees 

 and shrubs. There are many varieties in cultivation, all of which thiive 

 best in a light, well-drained eoU. Propagated by seed, cuttings and 

 layers. Green cuttings, taken from the plants in summer and placed in 

 frames and shaded during the heat of the day, produce roots quite freely, 

 and in a few days. Ripe wood cuttings, taken off in the fall and placed 

 in boxes in a cool greenhouse, wUl usually become well rooted by the 

 following spring. Some of the varieties grow quite readily by cuttings 

 planted in the open ground in spring, but the sofl should be packed 

 firmly about the base of the cuttings to insm-e the production of roots. 

 CalUcarpa (French Mulberry).— Handsome Uttle shrubs, cultivated 

 for their ornamental berries. A genus of only five species — one Ameri- 

 can, one from Japan, two from India, and one from China. Propagated 

 by seed, divisions, or cuttings of the young shoots in spring, placed 

 under a bell glass in a greenhouse or in close frames where they will 

 receive a little bottom heat. 



Callistemon. — Handsome greenhouse shrubs, most of the species 

 being native of New South Wales. Propagated by seed when it can be 

 obtained, but the best flowering plants are raised fi'om the ripe wood — 

 the cuttings placed in pure sand in frames or under a beU glass. 



Callitris. — ^A small genus of tender, evergreen trees, closely allied 

 to the Ai-bor-vitses, but with very long, slender, jointed branches. Propa- 

 gated by seed, and cuttings of the branches taken off in the autumn and 

 kept in a cool greenhouse through winter, or stored in a frame where 

 they will not freeze. 



Calluna (Heather, Ling). — A genus of the Heath family, indigenous 

 to Europe and to rather limited areas in North America. Propagated 

 by cuttings of the green, tender shoots planted in pure sand under glass. 

 To sPQwe tlj§ l>§6t Quttings, the pl^Bts should be grown m the house 



