Chap. IV] TROPICAL DISTRICTS CONSTANTLY MOIST 325 



Fig. 165. Nidularium Innocentii. A tank-epiphyte from Brazil. Half the natural size. 



Tank-epiphytes. The epiphytic Bromeliaceae. which belong particularly 

 to the genera Tillandsia, Vriesea, Aechmea. and Nidularium, possess, in 

 the majority of cases, rosette-like vegetative shoots, whose stiff leaves are 



