419 
Zingiber oiRcinale, Roseoe. 
.The Gringer. India and China. Possiby this plant may he 
productive in the hottest part.s 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 aquatica, L.* {Hydropyrmn esmlentum, 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.* 
(^Ilydropyrum latifolium, 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. microstacliya, Nees. 
Zizyphns 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. 
