对中国光苔属标本进行研究的结果表明,除曾报道的Cyathodium cavernarium Kunze和C.smaragdinum Schiffn.两种以外,又发现了C.tuberosum Kash.、C.aureonitens(Griff.)Mitt.和C.tuberculatum Udar et Singh3个中国新记录种。中国现有光苔属植物共5种。
Chinese Cythodium, C. tuberosum Kash. , C. aureonitens (Griff.) Mitt. , Udar et Singh were reported here as new records for the Chinese bryoflora in addition Kunze and C. smaragdinum Schiffn. reported before. Altogether there are five species and C. tubculatum to C. cavernarium of Cyathodium in China.