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Transactions. 



(/.) Histiopteris incisa (Thbg.) J. Sm. 



A well-marked form of this fern is fairly common on Norfolk Island. 

 It is mucli more luxuriant and stouter than the New Zealand plant, but 

 otherwise scarcelv different. 



a 



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>o-> 



"uN' 



M) 



0W 



iV 



i 



0: 





j\ 



^ 



Fig. 5. — Histiopteris incisa (Thbg.) J. Sm. 

 A pinna (^ natural size), with a magnified fertile pinnule, a. 



