Armstrong, J.B. 1881: A natural arrangement of the New Zealand ferns founded on the system of Smith's "Historia Filicum", with critical notes on certain species. Transactions and Proceedings of the New Zealand Institute 13: 359–368.
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Armstrong, J.B. 1881: A natural arrangement of the New Zealand ferns founded on the system of Smith's "Historia Filicum", with critical notes on certain species. Transactions and Proceedings of the New Zealand Institute 13: 359–368.