Iwatsuki, K. 1982: Studies in the systematics of filmy ferns VI. The genus Sphaerocionium in Asia and Oceania. Journal of the Faculty of Science, University of Tokyo, Section III. Botany 13: 203–215.
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| Iwatsuki, K. 1982: Studies in the systematics of filmy ferns VI. The genus Sphaerocionium in Asia and Oceania. Journal of the Faculty of Science, University of Tokyo, Section III. Botany 13: 203–215. |