PLUM, COCO POLiANTHES. 303 



Plum, concluded. 



and this may be expected to be an advantage. Peach is 

 probably preferable to Marianna. 



Prunus Simonii works upon peach, common plum, 

 Myrobalan and Marianna, chiefly upon the first. 



The ornamental plums are worked upon the same 

 stocks as the fruit-bearing sorts. See Prunus. 

 . Plums (like cherries) can be top-grafted the same as 

 apples, but the cions must be kept completely dormant. 

 It is preferable to graft very early in the spring. 



Plum, Coco. See Chrysobalanus. 



Plumbago (Lead wort). Plumbaginacece '. 



Seeds, division and cuttings. Cuttings are made from 

 firm, nearly mature wood, and should be given mild bot- 

 tom heat. 



Podocarpus. Conifer &. 



Usually grown from cuttings of firm wood under cover. 



Podophyllum (May Apple, Mandrake; erroneously Duck's 



Foot). Berberidacece. 

 Seeds (stratified or sown as soon as ripe) and division. 



Poinciana. Leguminosce. 

 Propagation by seeds. 

 Poinsettia. Euphorbiacea -. 



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

 handled upon a cutting-bench or in a frame Many prop- 

 agators 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 Euphorbia. 



Polemo.nium. Polemoniacece . 



Propagated by seeds and by division. 

 Polianthes (Tuberose). Amaryllidacea? \ 



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. 



