THE BOTANY OF CHRISTMAS ISLAND. 245 



rocks formerly washed by the sea, are now far out of 

 reach of the waves, and the plant probably reached 

 the island in its early days. I saw no young plants and 

 it does not appear to be spreading. I am not sure as to 

 the species of this plant but have followed Rendle in the 

 name. The pinnae are much more narrow than in 

 C. Rumphiana, the common Malayan species. 



Ferns. 



Trichomanes parvulum, Poiret. 



On trees on the Plateau, (Andrews.) I found very 

 young plants of a species of Trichomanes probably 

 this, on the Plateau. 

 Distribution, Madagascar, Malaya, Polynesia. 



Davallia solida, Sw. 



Very common on trees on the Plateau, etc. 

 Distribution. Malay Peninsula and Islands, Polynesia. 



D. dissecta, J. Sm. On trees and rocks Plateau, N. Coast, etc. 

 Distribution Java. 



D. spelunca, Baker. 



One frond brought by Andrews. Common in Flying 

 Fish Cove and on the road to the Waterfall. 

 Distribution most warm regions. 



Pteris quadriaurita. 



Near houses in Flying Fish Cove and one young 

 plant along the track to the Waterfall. Doubtless a 

 recent introduction. It often turns up in this way in 

 the Malay Peninsula. 



Asplenium Nidus, L. 



Very common on trees on the plateau. First col- 

 lected by Lister. 



Distribution, tropics of the old world. 



R. A.. Soc, No 45, 1905. 



