Although the latter is true, " N . rajah " is certainly not found solely in the spray zones of waterfalls and this statement seems to have little basis in fact.
12.
Vegetation : Most of the spray zone adjacent to the Falls is covered with patches of various mosses, liverworts, and other low herbaceous vegetation, including " Eutrochium purpureum ", " Angelica atropurpurea ", and " sere, periodically rejuvenated to a bare rock substrate by flood waters.
13.
In the spray zone, the rock surface temperatures averaged 16 �C, the moss averaged 14 �C, and the combined temperatures of the substrate, water, and vegetation averaged 16 �C . Seasonal and daily temperature variation has been monitored for 2 years using data loggers that record temperature every hour, but this data has not yet been analyzed ( Breisch, unpublished data ).
