186 



THE ZOOLOGIST. 



The Pandanacece, or " screw-pines," are trees with stilt-roots 

 and heads of spirally-arranged long narrow leaves. The leaf- 

 bases overlap in such a way as to form abundant spaces capable 

 of acting as reservoirs. In both the Hawaiian and the Seychelles 



Fig. 1. — A small tree [Acnistus arborescens) bearing a large number of 

 epiphytic bromeliads (Tillandsia) ; Costa Rica. (After Picado.) 



Islands* animals have been found inhabiting them. In the 

 mountain-forests of the Seychelles the water in these plants is 

 permanent, and they were found to contain a varied and 

 interesting fauna, including Woodlice, Snails, Earthworms, a 



* Trans. Linn. Soc. London, ser. 2, Zool., vol. xiv., 1910, p. 24. 



