IN EXTRA-TROPICAL COUNTRIES. 345 



Ulmus Wallichiana, Planchon. 



Himalayan Elm. In the mountains of India from 3,500 feet to 

 10,000 feet. A tree up to 90 feet high with deciduous foliage, the 

 stem attaining a girth of 24 feet. 



Umbellularia Californica, Nuttall. (Oreodaphne Calijornica, Nees.) 



Oregon and California. Tree to 100 feet high. "Wood most valu- 

 able for cabinet-work, also for the best of flooring ; that of the root 

 splendid for turnery. 



Uniola gracilis, Michaux. 



North America. A perennial pasture-grass of considerable value, 

 content with sandy soil, and liking the vicinity of the sea. 



Uniola latifolia, Michaux. 



North America. This rather tall perennial grass forms large tufts, 

 and affords valuable fodder ; it is best adapted for shady woodlands 

 (C. Mohr). 



Uniola paniculata, Linne. 



North-east America. This tall maritime grass can be chosen on 

 account of its creeping roots to bind rolling coast-sands. 



Urena lobata, Linne. 



Intratropic girdle around the globe. This perennial herb has 

 recently been enumerated among plants with comparatively tenacious 

 fibre. 



Urginia Scilla, Steinheil. (Scilla maritima, Linne.) 



South Europe, North Africa. The medicinal Squill. The plant 

 needs no regular cultivation, but settlers living near the coast might 

 encourage its dissemination, and thus obtain the bulbs as drug from 

 natural localities. Its peculiar bitter principle is called scillitin. 

 The bulb contains 24 per cent, tannin. U. altissima (Baker) serves 

 in South Africa as Squill. 



Uvularia sessilifolia, Linne. 



North America, in forests. This pretty herb is mentioned as 

 yielding a good substitute for asparagus. 



Vaccinium alatum, Dombey. (Thibaudia alata, Dunal.) 



Frigid regions of the Andes of Peru. A tall evergreen shrub, with 

 pink berries of the size of a cherry. This highly ornamental plant 

 could be grown in Sub- Alpine regions. 



