Abstract:There are 59 kinds of spermatophyte in the 900m 2 sample plot of the Distylium chinensis community in Maolan Karst forest.Among them 19 critical species produce ripe seeds 238.8/m 2·a.The seed rain is 351.1/m 2.The number of the germinative seeds in the seed rain which enable the community to regenerate is 150.8/m 2.Before the germination there are 41 kinds of germinative seeds with number 2642 0/m 2 and nineteen of them are produced by the present plants.After the germination,there are 28 kin...