postelsia n 



I. Marine formations. 



a. Vegetation of the tidal area. 



1 . Algal formation. 



2. Eel grass formation. 



II. Formations of the beach. 



a. Vegetation of sandy beaches. 



I . Sand beach formation 

 (I Large open beach. 

 b Small inlet beach. 



b. \'egetation of rocky beaches. 



I . Rock beach formation. 

 (/ Exposed rocky beach. 

 b Protected rocky beach. 



III. Formations of the forest country. 



a. Vegetation of the transition zone. 



I . Salal formation. 



b. Vegetation of the forest proper. 



I. Coniferous forest formation. 

 a Forest of low altitudes 

 fronting the sea (up to loom. 

 b Forest of higher altitudes 

 (loom, to 300m.). 

 c Forest of the river valleys. 



