178 



THE AMERICAN NATURALIST [Vol. LI 



trate. Here we meet with the thimble-berry {Rubus par- 

 viflorus var. velutinus), the salmon-berry {Rubus spec- 

 tabilis var. meneiesii), huckleberry {Vaccinium ovatum), 

 red bilberry (F. parvifolium), salal {GauUheria sJiallon), 

 and in the more open areas the blackberry {Rubus viti- 

 folia). Two ferns {Aspidium munitum and Pteris aqui- 

 lina) are extremely abundant, the latter in particular 

 forming dense growths higher than a man's head. In the 



N. Lentell's map of IIuinl)ol(lt County. Tlie three principal trapping sta- 

 tions are designated by the letter T. Area occupied by redwood forests la 

 indicated by oblique shading. 



more open areas a tall annual of the evening primrose 

 family {Epilobium an gusti folium) constitutes an im- 

 portant element in the vegetation. 



One coming from the more arid parts of California can 



