摘要
There are at least 20 species of wild rice in theworld.Three wild rice species have been foundin China,i.e.O.rufipogon Griff.,O.officinalis Wall.,and O.meyeriana Baill,distributing in Fujian,Jiangxi,Hunan,Tai- wan,Guangdong,Guangxi,Yunnan,andHainan provinces(see table and figure).Theregion covers from southernmost Ya County,Hainan Province(18°9′N)to northernmostDongxiang County,Jiangxi Province(28°14′
