STUDIES ON THE FLORA OF SEED PLANTS IN DALAOLING

Dalaoling is a mountain area lying on borders of counties Yichang, Zigui and Xingshan in western Hubei Province, with an area about 101. 84 square kilometers. There are 856 species of wild seed plants belonging to 122 familes and 435 genera in Dalaoling. Based on the analysis of families, genera and species, the characteristics of flora are summaried as follows:(1)The flora has a obvious character of temperate zone.(2)The flora is complex in geographical elements, there are l3 types and l7 subtypes of chinese genera of seed plants in this area. (3)The flora is not remarkable in endemicity.(4)The flora has a strong ancient feather.