419 

 Zingiber officinale, Roscoe. 



The Ginger. India and China. Possiby this plant may be 

 productive in the hottest parts of our colony, and give satis- 

 factory results. The multiplication is effected by division 

 of the root. For candied ginger only the young succulent 

 roots are used, which are peeled and scalded prior to the 

 immersion into the saccharine liquid. 



Zizania aqnatica, L.* (Hydropyrum esculentum, Link.) 



The Canada Rice. In shallow streams and around ponds 

 and lakes from Canada to Florida. This tall grass might 

 be readily naturalized. Although its grain can be utilized 

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

 to obtain additional food of a superior kind for water- 

 birds. 



Zizania latifolia, Hance.* 



(Hydropyrum latifoliwm, Grrisebach.) 



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

 China and Japan. Nearly related to the preceding species. 

 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 India. Likewise 

 tall and perennial, but more restricted to the tide-water 

 meadows and ditches, according to Pursh ; but according to 

 Chapman's note generally distributed like Z. aquatina, with 

 which it has similar use. In South Brazil occurs a similar 

 grass, namely Z. microstachya, Nees, 



Zizyphus Jujuba, La Marck. 



From India to China. This shrub or tree can only be ex- 

 pected to bear its pleasant fruits in the warmest parts of our 

 colony. The fruit is red or yellow, and of the size of a large 

 cherry. 



