Holttum, R.E. 1976: The genus Christella Léveillé, sect. Christella. Studies in the family Thelypteridaceae, XI. Kew Bulletin 31: 293–339.
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| Holttum, R.E. 1976: The genus Christella Léveillé, sect. Christella. Studies in the family Thelypteridaceae, XI. Kew Bulletin 31: 293–339. |