172 



THE AP.T OP 



protected from the air until it shoots. If grafted under glass, 

 the leaves are to be retained, but partially clipped. Graft close 

 to the ground. Branch-grafting or budding in the open air 

 exposes the young plant too much to the frost. 



Bignonia. 



Stock. — A portion of the root of Bignonia virginica. Mode 

 of Grafting. — Cleft -grafting, or inlaying on the root (in April 

 and May (see p. 125). 



Remarks. — The pieces of root should be about 4 inches in 

 length. When grafted, they should be planted so that they 

 may be covered with soil up to the highest bud on the scion. 

 An early growth may be promoted by the use of a cloche or 

 frame. 



Birch. 



Stock. — The common Birch ( from seed), jlocle of Grafting. — 

 Side-grafting with a simple branch (in August) ; by approach 

 (during the season of growth) (see p. 41); close to the ground, or 

 as standards. 



Remarks. — The Birch may also be propagated by grafting 

 under glass. In the open air it sometimes succeeds when 

 shield-budded. M. Andre Leroy practises shield-budding with 

 Betula laciniata, and cleft -grafting with B. tristis. 



Camellia. 



Stock. — Single-flowered Camellia (from seed or cuttings), 

 Ilode of Grafting. — Veneering ; side cleft -grafting (from July 

 to September) ; by approach ; ordinary cleft-grafting (in 

 April) ; close to the ground. 



Remarks. — Stocks which have been side-grafted, (p. 72) 

 veneered, or cleft -grafted, should be placed under cloches or 

 frames to which air should not be admitted for five weeks, or until 

 the union of the graft has been ascertained. The stock is to be 

 headed down later on when the graft has sprouted. The stocks 



