NO. 17 



SMITHSONIAN EXPLORATIONS. I916 



71 



.s(|uare miles. These boss's are found near tlie summits of ridges 

 in the res^ions of heavy rainfall, are devoid of trees and shrubs, 

 and harbor a peculiar vegetation. Many species form more or 

 less globose tussocks which rise above the general level of the 

 bog". The most interesting of these tussock ])lants are a sedge 



Fig. 



76. — A representative of the peculiar ar1)orescent lobelias {Cyaiica sp.). 

 Forest near Kaholuamano, Kauai. 



{Orcoboliis furcatits) and the three species of Panicum mentioned. 

 The panicums form close masses, the interior consisting of many 

 generations of dead leaves and stems, scarcely decayed, the exterior 

 consisting" of short living shoots an inch or two long", with a few 

 contiguous ovate blades and reduced panicles of one to a few spike- 

 lets. A showy lobelia (L. gaiidichaudii) with numerous large 



