Laing. — Revised List of the Norfolk Island Flora. 9 



List of Species of Flowering-plants and Ferns Indigenous to 



Norfolk Island.! 



Some Abbreviations. 

 * Not found by me. 



E. Endlicher's list of Norfolk Island species. 

 M. Maiden's list of Norfolk Island species. 

 T.N. Z.I. '" Transactions of the New Zealand Institute.'' 

 Cheesem. Cheeseman's " Manual of the New Zealand Flora." 

 Benth. Bentham's " Flora Australiensis." 



Pteridophyta. 



FlLICINAE. 



The late Dr. Metcalf, whose knowledge of the ferns of Norfolk was 

 unique, assured me that he was satisfied that the number of species to be 

 found on the island was little over thirty. Maiden records fifty-two, but 

 there is no first-hand evidence that some of these have been collected on 

 the island by anv botanist. On this ground, the ferns numbered as follows 

 in Maiden's list are here omitted : 1, 8, 22, 42, 47, 49. Of these, (22) Pteris 

 marginata Borz. is recorded by Muller as having been found by Mr. I. Robin- 

 son on the island ; (8) Polypodium acrostichioides Forst. and (42) Aspidium 

 tenerum Spreng. are recorded by Muller as having been collected by Carne ; 

 (47) IAndsaya linearis Sw. and (49) Dennstaedtia (Dicksonia) davallioides 

 T. Moore are recorded in Benth. without any collector's name. The Nor- 

 folkers grow many foreign species in their ' : bush houses," and it would 

 be quite easy for some of these to get into lists drawn up by botanists who 

 have not visited the island. (1) Hymmophyllum muUifidum appears first 

 in Tate's list : but no collector's name is attached to it. 



Hymenophyllaceae. 



1. Trichomanes Bauerianum Endl., E. 50. (= T. apiifoliwm Presl., M. 2.) 

 Abundant on the sides of rocks in darker bush creeks. 



Lord Howe, New Caledonia, Australia, Malaya, Polynesia. 



2. Trichomanes humile Forst., E. 49, M. 3. 

 In moist places in the darker forests. 



Kermadecs, New Zealand, Australia, and adjacent tropics. 



Cyatheaceae. 



Gyathea medullaris Forst., appears E. 47, but is not in Bauer's herbarium, 

 and has not been found in Norfolk Island by any subsequent botanist. 

 (Vide M., p. 737, and under " Alsophila robusta" below.) 



3. Alsophila excelsa R. Br., E. 48, M. 50. 



Not common on the island, and much confused with the following, 

 which is perhaps more abundant. 



4. Alsophila robusta C. Moore var. norfolkiana Laing var. nov. 



Costis costulisque parce muricatis, fulve tomentosis et paucis squamis 

 linearibus conspersis. 



The variety everywhere common on Norfolk Island. The typical form 

 <m Lord Howe ; related also to A. australis of Australia. 



I had confused this with the previous species until Mr. Oliver pointed 

 out to me that two species occurred on the island, and sent me a specimen 



t A collection of Norfolk Island plants has been presented by me to the Canterbuiy 

 Museum. 



