Such endemics have been termed epibiotics . 這樣的特有種稱為活化殘遺種。
The percentage of families with single genus and genera with single species is considerably large , and the rate of endemic species to china is 6 . 12 % . all these demonstrate the complexion of hepaticae - flora and the ancient character of origin of bryophytes in hebei 河北省苔類區(qū)系中現(xiàn)存的單屬科、單種屬比例較大,多為處于演化終極的只有少數(shù)殘遺種的科屬,這反映了本省苔類植物區(qū)系起源的古老性。