CHAPTER VI. 



THE NURSERY LIST. 



Aaron's Beard. See Hypericum. 

 Aaron's Rod. See Verbascum. 

 Abelia. Caprifoliacece. 



In spring by layers under a frame, and in summer by 

 cuttings. 



Abies (Fir, Spruce). Coniferce. 



Propagated by seeds, which are usually kept dry over 

 winter and sown in spring in frames or in protected borders. 

 Cones should be fully matured before being gathered. If 

 they hold the seeds tightly they should be placed in a dry 

 place, sometimes even in an oven, until the scales spread. 

 In order to obtain stocky plants, the seedlings should be 

 transplanted the following spring. The named varieties and 

 the species which do not produce sufficient seed are winter- 

 worked upon seedling stocks which are potted from the seed- 

 beds in the fall. One-year-old stocks are commonly used, 

 but in some cases the requisite size is not reached until the 

 second year. Any of the common operations of grafting 

 may be employed. The conifers are not difficult to graft. 

 The European silver fir (Abies pectinata] may be used as a 

 stock, but the common Norway spruce is now the most 

 popular stock for species of both Abies and Picea. 



Abobra. Cucurbitacea?. 



Propagated by seeds, or rarely by soft cuttings. 

 Abroma. Slerculiacea. 



By seeds sown in March. By cuttings made in spring 

 from half-ripened wood, and placed under a bell-glass. 



Abronia (Sand Verbena). Nyctaginacecv. 



Propagated by seeds sown in autumn or spring, after the 

 outer skin has been peeled off. Sow in pots of sandy soil, 



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