PHILODENDRON — PHYSALIS. 397 



Philodendron. Aroidea. 



Increased by seeds ; and by dividing the stems, allow- 

 ing two or three joints to each piece, inserting them in 

 pots in a brisk heat. 



Phlomis. Labiates. 



All of the species may be increased by seeds ; the her- 

 baceous kinds by division, and the shrubby sorts also 

 by cuttings. 



Phlox. Polernoniacece . 



The annuals are grown from seeds sown in the open. 

 The perennials are grown from seeds, divisions, cuttings 

 of stems and roots. Cuttings made during summer, and 

 handled in a frame, do well. The roots are cut into short 

 pieces, and are then handled in pans or flats under cover. 



Phoenix. See Date. 



Phormium (Flax Lily, or New Zealand Flax). Liliaceas. 

 Seeds. Also by division of the crowns before growth 

 commences in spring. 



Photinia, including Eriobotrya. RosacecE. 



Stratified seeds or half-ripened cuttings under glass. 

 Varieties of loquat, P. Japonica, are grown from layers or 

 cuttings of ripe wood ; it is also worked upon seedling 

 stocks or upon thorn or quince, after the manner of pears. 



Phyllanthus, including Xylophylla. Euphorbiacea . 



Increased by means of cuttings of hard shoots in heat. 



Phyllocactus, including Phyllocereus and Disocactus (Leaf 

 Cactus). Cactaceie. 

 Seeds germmate readily in sandy soil. Usually in- 

 creased by cuttings of the stems, 5 or 6 inches long, 

 placed in sandy soil, which is kept only slightly moist. 

 See also Cactus. 



Phyllocladus. Conifera. 



Cuttings of the ripened shoots under glass, in spring. 

 When the cuttings begin callusing, give mild bottom heat. 



Physalis (Ground or Winter Cherry, Strawberry Tomato, 

 Husk Tomato). Solanacece. 

 Seeds, sown outdoors or under cover. Perennials by 

 division and soft cuttings. 



