254 



THE NbRSERY-BOOK. 



Plumbago (Lead wort). Plttmbaginece. 



Seeds, divisions and cuttings. Cuttings are made from 

 firm nearly mature wood, and should be given mild bottom 

 heat. 



Plumeria, Himatanthus. Apocynacece. 



Seeds. Make cuttings of ripe shoots, and place under glass. 

 Podalyria. Leguminosce. 



Readily increased by seeds. Divisions do not succeed well. 

 In spring, cuttings may be made of strong side shoots, and 

 planted in sand under -glass. 



Podocarpus. Conifer ce. 



Usually grown from cuttings of firm wood under cover. 



Podophyllum (May Apple, Mandrake ; erroneously Duck's 

 Foot). Berberidece. 



Seeds and division. 

 Poinciana. Leguminosce. 



Propagation by seeds. 



Poinsettia, Euphorbia. Euphorbiacece. 



Cuttings of growing shoots, of two or three buds each, 

 handled upon a cutting bench or in a frame. Many propa- 

 gators prefer to let the cuttings lie exposed two or three days 

 before setting them. Cuttings of ripened wood can be used 

 to good advantage where the heat is rather low. See Eu- 

 phorbia. 



Polanisia. Capparidece. 



Seeds, in-doors or in the open. 

 Polemonium. Polemoniace<z. 



Propagated by seeds and by division. 

 Polianthes (Tuberose). Amaryllidece. 



Increased by bulbels. Remove these from the parent bulb 

 in the fall, and keep in a warm, dry place until the following 

 ' spring. The soil should be light, rich and moist throughout 

 the summer. Before frost comes in the fall, take the bulbs 

 up, and when dry, cut off the leaves. The bulbs should be 

 kept as during the preceding winter, and the culture during 

 the following year is the same as during the first. The bulbs 

 usually flower the second or third summer. 



Polyanthus. See Primula. 



