6o postelsia 



Tiardla trijoUata Boykniia data 



Tolmica mcnzicsii Mitdla ovalis 



Viola glabella Mojicscs uuijJora 



Miniiilus moschatus Galium tvijJonim 



2. River bed formation 

 a Banks and Channel. 

 Gordon River Bed — Durinof the summer 

 months, the volume of the river decreases to 

 such an extent as to leave exposed the banks 

 from where the forest and its underbrush ceases, 



and also a considerable extent of the boulder- 

 strewn channel bed. Two types of river banks 

 can be distinguished here, viz; moist sandy 

 banks and moist rocky banks. Both kinds are 

 more or less shaded by the overhanging branches 

 of the adjacent trees, yet it is self evident that 

 much more light is admitted here than into the 

 forest of the slopes on either side. 



Upon the sandy banks are associated a few 

 species, no one of which figures predominantly 

 and all growing more or less scattered or in 

 tufts. In this scanty society are most gener- 

 allv to be observed: 



