IN EXTRA-TROPICAL COUNTRIES. 265 



Ptychosperma Arfakiana, Beccari. 



New Guinea, reaching elevations of 5,000 feet in comparatively 

 temperate regions. Height up to 30 feet. 



Ptychosperma Cunningham!, Hermann Wendland. 



East Australia, as far south as lllawarra ; thus one of the 

 most southern of all Palms. This also is a very high species, 

 destined to take a prominent position in decorative plantations. 

 Several species occur in Fiji and other islands of the Pacific 

 Ocean, and others again might be obtained from India, but 

 they are probably not so hardy as those mentioned. Though 

 strictly speaking of no industrial value, these Palms are im- 

 portant for horticultural trade, and are objects eminently 

 fitted for experiments in acclimatisation, 



Ptychosperma disticha, Miquel. (Areca disticha } Griffith.) 

 Assam, up to 4,000 feet. 



Ptychosperma elegans, Blume. (P. Seaforthia, Miquel ; Sea/or- 

 thia elegans, R. Brown. 



Littoral forests of tropical Australia. Also a lofty magnifi- 

 cent Feather- Palm. Its leaflets are erose. It may prove hardy. 



Ptychosperma Musschenbroekiana, Beccari. 



Ternate, up to 3,000 feet. Height of this palm 90 feet. 

 Almost sure to be hardy in sheltered localities of the warmer 

 temperate zone. 



Pueraria tuberosa, Candolle. 



South Asia, up to 4,000 feet. A tall woody twiner. Its 

 large tubers are edible and might improve by culture. 



Pugionium cornutum, Gaertner. 



From the Caspian Sea to China. This herb is grown by the 

 Mongols as a vegetable (Hance) . 



Punica granatum, Linne. 



The Pomegranate. North Africa and West Asia, in the 

 Himalayas up to 6,000 feet. Well-known for its showy habit, 

 rich-coloured flowers, peculiar fruit, and medicinal astringency 

 but much overlooked regarding its value as a hedge-plant. 

 The bark contains 32 per cent, tannin (Muspratt). 



Pycnanthemum incanum, Michaux. 



North America. A perennial herb, in odour resembling both 



