240 THE NURSERY-MANUAL 



Arachis : Peanut. 



Aralia. Araliacea*. 



Propagated by seeds sown in spring and by root-cuttings, also by 

 stem-cuttings, all in heat. The greenhouse kinds are not likely 

 to produce seeds. The plants commonly known to horticulturists 

 as aralias are now distributed in several genera, the true aralias 

 being mostly hardy or half-hardy outdoor plants in the northern and 

 central states. See Dizygotheca, Fatsia, Polyscias. 



Araucaria. Pinaceoe. 



Increased by seeds (when obtainable) sown in pans or boxes, 

 with gentle heat; by cuttings from the leading shoots, placed 

 firmly in sand. For the making of symmetrical plants, cuttings 

 should be taken from upright leading shoots that start from the 

 axils of the branches. Cuttings from side or horizontal shoots 

 make irregular plants. Seedlings themselves are readily grown 

 from imported seed, but they make tall loose plants. To secure 

 compact plants, cuttings may be made from strong seedlings. The 

 top shoot of the seedling is taken as a cutting and rooted in a cool 

 temperature (about 60). The seedling then produces other 

 leader shoots from the axils of the upper tier of branches, and these 

 in turn are taken for cuttings. The seedling is then cut back to 

 the next tier, and other leader shoots will form there ; and so on 

 till the stock is used up. 



Arbutus (Strawberry Tree). Ericaceae. 



Increased by seeds, which should be sown in sand in early 

 spring or in autumn, and by veneer-grafting, budding or inarching 

 on A. Unedo. Propagated also by cuttings from half-ripened 

 wood in autumn, placed in sandy peat soil under glass. Layers 

 usually take two years to root. 



Archangelica. Umbellifcrce. 



Propagated by seeds sown in autumn as soon as ripe, or the 

 following spring in severe climates. 



Archontophcenix. Palmaceas. 



Propagation by seeds in heat. See Palms, page 377. 



Arctostaphylos and Arctous. Ericaceae. 



Propagation as for arbutus, which see; mostly by division of 

 the plants when possible, and also by seeds and cuttings. If cut- 



