BY J. H. MAIDEN. 141 



Pandanus Forsteriana in having smaller and more numerous 

 branches; shorter, more undulating and narrower leaves; cones 

 6 to 8 inches long, or less than half the size of those of P. 

 Forsteriana ; height 20 to 30 feet, with a diameter across the 

 branches of 20 feet; the stems are about 6 inches in diameter 

 and aerial roots are produced on the branches, a peculiarity rarely 

 seen in Pandanus Forsteriana." 



Pandanus Forsteri, F.v.M., and C. Moore, was described in 

 Mueller's Fragm. viii. 220 (1874), and the smaller Pandanus was 

 designated P. Moorei^ F.v.M., (name only) in Mueller's Census, 

 p. 140 (1882). As far as I know, it has never been described. 



Finally, Hemsley (op. cit.) refers to this smaller Pandanus as 

 " species imperfecte cognita," and ignores Mueller's mere name. 



I went to the island prepared to enquire into this Pandanus. 

 I had with me as guide Edward King, who was originally Mr. 

 Moore's guide, and who pointed the trees out to Mr. Duff. He 

 pointed out to me the identical trees specially examined by Mr. 

 Duff, and I have in the Museum of the Botanic Gardens a cone 

 collected by Mr. Duff and labelled ''Pandanus Moorei, F.v.M." 



No plants on the island engaged my closer attention than did 

 the Pandani. I examined them from the coast line up to 1,200 

 feet and endeavoured to persuade myself that there are two species, 

 but this I failed to do. In other words, I am of opinion that 

 there is only one species of Pandanus on the island, and that 

 r. Moorei has no real existence. It is quite true that the cones 

 vary in size, but not much. The cone of the so-called Pandanus 

 Moorei in the Sydney Botanic Museum is unripe and consequently 

 its dimensions are of no value. I searched the island, and the 

 smallest ripe cone I could find was not much less in size than the 

 average. 



The leaves are sometimes shorter than others, but their size is 

 not constant, even on the same tree. 



In some Pandanus trees the " forks " or aerial roots start 

 wholly from the stem; in the case of the reputed P. Moorei these 

 aerial roots spi'ing from the branches. I found every intermediate 

 stage of aerial root attachment, many trees having these both 



