in Extra-Tropical Countries. 389 



Ulmus Wallichiana, Planchon. 



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

 10,000 feet. A tree sometimes to 90 feet high, the stem attaining a 

 girth of 24 feet. Bark very tough ; foliage locally lopped off for 

 cattle-fodder (Brandis). 



Umbellularia Calif ornica, Nuttall. (Oreodaphne Calif ornica, Nees; Tetran- 

 thera California, Hooker and Arnott.) 



Oregon and California, where it is called the "Mountain-Laurel" 

 or " Bay-tree. " Tree becoming 100 feet high; throughout pervaded 

 by a somewhat camphoric odor. Wood most valuable for cabinet- 

 work, also for the best of flooring; that of the root splendid for 

 turnery; it is hard, close-grained, durable, easily worked, susceptible 

 of high polish (Dr. Behr and Prof. Bolander). 



Uniola gracilis, Michaux. 



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

 tent with sandy soil, and liking the vicinity of the sea. Root creeping. 



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-Eastern America. This tall maritime grass can be chosen on 

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



Urena lobata, Linne. 



Intra-tropic girdle around the globe. This perennial herb has 

 recently been enumerated among plants with comparatively tenacious 

 fibre; it can be reared far beyond the tropics. Some congeneric 

 plants can similarly be utilized. 



Urginea Scilla, Steinheil. (Scilla maritima, Linn4.) 



The medicinal Squill. Countries around the Mediterranean Sea, 

 Canary-Islands. Already ordered by Charles the Great to be grown in 

 the imperial gardens. This coast-plant needs no regular cultivation; 

 but settlers living near the sea might encourage its dissemination, 

 and thus obtain the bulbs as drugs 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. 



U vularia sessilifolia, Linn<. 



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

 ing 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. 



