Naturalisation in Extra- Tropical Countries. 311 



particularly in Britain. Nearly 330,000 tons of rice to the value 

 of 2,690,000 were imported into the United Kingdom in 1889. 

 The colony Victoria during 1887 imported 5,738 tons, valued 

 80,997. The export from India during 1886 was estimated to 

 have been about 9,000,000 [Dr. G. Watt]. Rice-sugar, called 

 " Ame " in Japan, constitutes there a kind of confectionery. For 

 sanitary reasons it is preferable to cultivate the mountain-rice, 

 when that is possible. 



Oryzopsis cuspidata. Bentham. 



South-Western parts of North-America. A perennial grass of 

 easy dissemination. Tufts dense, hence one of the Bunch-grasses ; 

 thrives on soil too sandy and too dry for more valuable grasses 



[Dr. Vasey]. 



Oryzopsis multiflora, Bentham. (Milium multiflorum, Cavanilles ; 

 Piptatherum multiflorum, Beativois) . 



Countries around the Mediterranean Sea, thence to Middle Asia, 

 also Madeira and Canary-Islands, northwards to Tyrol. This tall 

 perennial grass grows naturally in the driest of localities [Prof. 

 Caruel] . No other grass at St. Vincent's Gulf grows so luxuriantly 

 with so little water and exposed to so great a heat [Hon. R-. A. 

 Tarlton], 



Oryzopsis panicoides, Bentham. (Piptochcetium panicoides, E. Desvaux.) 

 Extra-tropical South-America. This with some congeners affords 

 good pasturage in Chili and the La Plata-States [Hieronymus]. 



Osmanthus fragrans, Loureiro. 



China and Japan. The floAvers of this bush serve for oil-distilla- 

 tion like those of the Jasmine. The scent of one plant will perfume 

 a whole conservatory [G. W. Johnson]. 



Osmitopsis asteriscoides, Cassini. 



South- Africa. A camphor-scented shrub, much in use there for 

 medicinal purposes [Dr. Pappe]. 



Ostrya carpinifolia, Seopoli. 



" The Hop-Hornbeam." South-Europe and Orient. A deciduous 

 tree, reaching 60 feet in height. Uses much like those of the 

 following. 



Ostrya Virginica, Willdenow. 



" Lever- wood " Tree of Eastern States of North-America, also 

 Mexico. Occasionally called Iron-wood ; to 40 feet high, in rich 

 woodlands. Wood singularly hard, close-grained and heavy, in use 

 for levers, mill-cogs, wheels, mallets, wedges and other implements. 

 Cattle browse on the foliage. The growth of the tree is very slow. 



