Investigation and Study on Rare & Endangered Plants and National Key Protected Plants in East Guangdong

Identification of the 7 060 specimens collected in field surveys was made,and 120 species of rare and endangered plants in East Guangdong were found.There are 102 species of endangered species(IUCN),of which there are 2 critically endangered species,10 endangered ones,45 vulnerable ones,41 near threatened ones and 4 least concern ones.According to Red-Data Book of Plants in China,there are 22 rare and endangered plants in East Guangdong,of which there are 2 endangered ones,6 rare ones and 14 vulnerable species.According to the List of Rare and endangered Plants under State Protection(Vol.1,1987),there are 25 species,of which,there are 1 first class,6 second class and 18 third class.By the List of Wild Plants Under State Key Protection(Vol.1,1999),24 species were considered as protection plants in East Guangdong,of which there are 4 first class ones,20 second class ones.As in the List of Wild Plants Under State Key Protection(Vol.2,unpublished),there are 7 first class and 66 second class plants under state key protection in East Guangdong.The threatening factors were discussed and the protection measures were proposed.