AGERATUM ALISMA. 163 



Ageratum, Caslestina. Composite. 



Sow the seeds in January, in heat, in sandy soil. When 

 large enough, prick them off into thumb pots, and keep 

 in heat till they grow freely ; then place them in a cooler 

 house. Cuttings are commonly used for propagation. 



Agrostis (Bent Grass). Graminees. 



Increased easily by seeds, sown in spring in the open 

 border. 



Ailanthns (Tree of Heaven). SimarubacecB. 



Propa|;ated by suckers ; and by pieces of the roots 

 planted m a pot with their points above the ground, and 

 placed in a hotbed. Seeds are used when large quanti- 

 ites are desired. 



Ajuga (Bugle). Labiatce. 



Perennials, propagated by seeds sown in the open bor- 

 der, during spring or autumn ; by divisions. Annuals, by 

 seeds. 



Akebia. Berberidacece. 



Seeds. Layers of young or ripe wood. Dormant (or 

 firmwood) cuttings, under glass in summer. 



Albuca. Liliacea. 



Propagated by seeds and by offsets (bulbels) from the 

 old bulb. 



Alchemilla (Lady's Mantle). Rosacecz. 



Propagated by seeds or by divisions of the roots. 

 Alder. See Alnus. 

 Aleurites. Euphorbiacecs . 



Propagated by ripe cuttings in sand, under a hand- 

 glass. Do not remove leaves. 



Alexandrian Laurel. See Ruscus. 



Alfalfa. See Medicago. 



Algaroba Bean. See Carob. 



Alhagl (Manna Tree). Leguminoscs . 



Increased by seeds sown in a hotbed ; and by cuttings 

 rooted in sand, with a bell-glass over them, in heat. 



Alisma (Water Plantain). Alismacece. 



Increased by seeds, which should be sown in a pot 



