.586 Select Plants for Industrial Culture and 



Zizania aquatica, Linne. (Hydropyrum esculentum, Link,) 



The Canada-Rice. In shallow streams and around ponds and 

 lakes, from Canada to Florida. Annual. This grass might be readily 

 naturalised. It attains a height of 9 feet. Although its grain can 

 be utilised for bread-corn, we would wish to possess the plant 

 chiefly, to obtain additional food for water-birds. 



"Zizania fluitans, Michaux. (Hydrochloa Cctrolinemis, Beauvois.) 



Southern States of North-America. This grass, floating in 

 shallow streams, or creeping on muddy banks of rivers or swamps, 

 is praised by Prof. C. Mohr as valuable for fodder, lasting throughout 

 the year. 



'Zizania latifolia, Turczaninow. (Hydropyrum latifolium, Grisebach.) 



The Kau-sun of China. In lakes of Amur, Manchuria, China 

 and Japan. Regarded by Bentham as conspecific with Z. aquatica. 

 From Dr. Hance we know, that the solid base of the stem forms a 

 very choice vegetable, largely used in China, where this tall water- 

 grass undergoes regular cultivation like the Trapa. 



Zizania miliacea, Michaux.* 



Southern part of North- America, West-Indies. Tall and perennial, 

 more restricted to the tidewater-meadows and ditches, according to 

 Pursh ; while according to Chapman's note it is generally distributed 

 like Z. aquatica, with which it has similar use. In Southern Brazil 

 occurs a similar if not identical grass namely, Z. microstachya (Nees). 



Zizyphus chloroxylon, Oliver. 



The Cogwood-tree. Jamaica, in mountainous regions. Height 

 considerable. Wood greenish, ponderous, hard, tough, durable also 

 in water. Splendid for cogs, machinery [Sloane, Browne. See 

 "Dyer's Kew-Bulletin," June, 1889]. 



Zizyphus Joazeiro, Martius. 



Brazil. Recommended as yielding edible fruit in arid regions. 



Zizyphus Jujuba, Lamarck. 



From India to China and East-Australia, extending also to 

 tropical Africa, ascending the Himalayas to 4,500 feet.- This shrub 

 or tree can perhaps only be expected to bear its pleasant fruits within 

 the temperate zone in warm regions, although Professor Meehan 

 proved the plant to bear the winter-cold of Philadelphia. The fruit 



c is red or yellow and of the size of a cherry ; it ripens in the milder 

 regions of Victoria. The Tussa-silkworm. which according to Dr. 

 Forbes Watson is the most important and widely distributed of the 

 wild silk-insects of India, feeds on Z. Jujuba, but also on Termi- 

 nalia, Shorea, Bombax heptaphyllum (Cavanilles) and some other 

 trees ; often its cocoons are merely collected in the forests. 



