184 PRACTICAL PLANT PROPAGATION 



BACCHARIS. Groundsel Shrub. 

 SEEDS. 



CUTTINGS. Hard wood. 



BENZOIN (Lindera). Spice Bush. Wild Allspice. 

 *SEEDS. Sow seeds as soon as ripe, using a peaty soil. 

 CUTTINGS. Green wood, but are difficult to root. 

 BERBERIS. Barberry. 



*SEEDS. Sow seeds as soon as ripe, sowing in a seed bed, covering 

 bed with leaves during Winter. Keep seedlings in partial shade 

 at first. Even the Purple-leaved Barberry comes true to seed. 

 CUTTINGS. Readily propagated by green cuttings in June. The 



hard wood cuttings do not root readily. 



GRAFTING. Mr. Dunbar suggests grafting the rarer sorts on the 

 Purple Barberry; the suckers are thus easily distinguished. 



Fig. 94. The seed cone of the Birch 



BETULA. Birch. (See fig. 94.) 

 *SEEDS. Sow seeds as soon as ripe; B. lenta matures seed in June 



If planting is deferred until Autumn poor germination results; 



75 per cent of pyramidal Birch comes true. 

 LAYERS. The lower growing sorts may be layered; the larger sorts 



may be cut back to mound layer each year. 

 BUDDING AND GRAFTING. Easily done on seedlings of B. nigra, 



the Red Birch :B. lenla, the American Sweet Birch; orB. papyrifera, 



the Paper Birch. 

 B. Youngi pendula, B. pyramidalis, B. pendula, are budded chiefly, 



but may also be grafted 



