Naturalisation in Extra- topical Countries. 381 



Pouzolzia tuberosa, Wight. 



India. The turnip-shaped root of this herb is edible. The plant 

 may prove hardy in extra-tropic frostless regions, and its root may 

 improve in culture. 



Prang-os pabularia, Lindley. 



Plateaux of Afghanistan, Mongolia and Thibet. A perennial 

 fodder-herb, much relished by sheep, eligible for cold and arid 

 localities, and deserving naturalisation on alpine pasture-grounds. 

 Other perennial species exist near the Mediterranean Sea, on the 

 Atlas, the Caucasus and the Indian highlands. P. pabularia is 

 regarded by some as the Silphium of Arrianus. 



Prestoa pubigera. J. Hooker. (Hyospathe pubigera, Grisebach.) 



Trinidad. At an elevation of about 3,000 feet [Krueger]. The 

 stem of this plant attains only about 12 feet in height. Valuable 

 among the dwarf palms, now so much sought for table- and window- 

 decoration. 



Pr ing-lea aniiscorbutica, W. Anderson and R. Brown. 



The Cabbage or Horse-radish of Kerguelen's Island. Also on 

 Possession-Island of the Crozets, on Prince Edward Group and 

 Heard-Island. The perennial long roots taste somewhat like horse- 

 radish. The leaves in never-ceasing growth are crowded cabbage- 

 like into heads, beneath which the annual flower-stalks arise. The 

 plant ascends mountains in its desolate native islands to the height 

 of 1,400 feet, but luxuriates most on the sea-border. To arctic and 

 other antarctic countries it would be a boon. Probably it would 

 live on our Alps. Whalers might bring us the roots and seeds of 

 this remarkable plant, which seems never to have entered into 

 culture yet. The plant was used as cabbage by the celebrated 

 Captain Cook and all subsequent navigators, touching at yonder 

 remote spot, and it proved to possess powerful properties against 

 scurvy. Sir Joseph Hooker observes, that Pringlea can sectionally 

 be referred to Cochlearia. The whole plant is rich in a pungent 

 volatile oil. Through culture important new culinary varieties may 

 probably be raised from this plant. This vegetable in its natural 

 growth tastes like mustard and cress ; but when boiled it proved 

 a wholesome and agreeable substitute for the ordinary cabbage. 



Pritchardia G-audichaudi, H. Wendland. 



Lowlands of Hawaia. Stem to 20 feet high, stout. Leaves large. 

 Fruit small. 



Pritchardia ftXartii, H. Wendland. 



Hawaia. A rather dwarf palm, but with comparatively large 

 fruits, perhaps hardier than P. pacifica (Seemann) of the more 



pnna.i-nvial ra,rts of Pnlvnpsia,. 



equatorial parts of Polynesia. 



