Thirty - nine pantropic families account for 44 . 83 % of the total families , while 114 north temperate genera amount to 23 . 55 % of the total genera 有39科种子植物属于泛热带分布类型，占总科数的44 . 83 % ； 114属为北温带分布类型，占总属数的23 . 55 % 。
2.
In generic geographic composition , the proportions of pantropic distribution and tropic asia to tropic africa distribution are relatively increased , however , tropic asia distribution is relatively decreased 在属的地理成分上，片断森林中全热带分布和热带亚洲至热带非洲分布成分比例相对增高，而热带亚洲成分相对减少。
