Skinner: TIDE POOL VEGETATION OF PORT RENFREW. 151 



2 . Cheilosporum planiusculum. 

 A few plants occur with No. i. 



3. Callophyllis sp. 



Occurs on the northeast with No. I. 



4. Iridaea sp. 



A few plants occur along the upper edge on the east. 



5. Corallina vancouveriensis. 



A few plants occur below No. i. 



6. Microcladia borealis. 



A few plants were associated with No. 3. 



7. Endocladia muricata. 



Occurs under a small ledge on the southwest near the surface. 



8. Codium adhaerens. 



A few plants occur under an overhanging ledge on the north 

 near the top. 



The lower two and one half feet of the pool has no plant life. 



POOL No. VI. 



Location. Mid-tide pool. On a level four feet below No. 

 3. Distant from the edge of the ridge four feet. 



Exposure to Tide. The water enters from the south and 

 west and drains to the south, west and east. 



Shape and Dimensions. Irregular in shape. It consists of 

 a deep nearly circular part on the east, and a shallow arm ex- 

 tending to the west. The south and west walls of the shallow 

 arm are abrupt. The north side slopes gradually. The bot- 

 tom is thickly covered with mussels. 



The sides of the circular part of the pool are almost perpen- 

 dicular. Very irregular. Covered with holes and cracks. 

 The edge somewhat overhanging. The bottom is covered 

 with pebbles and rocks. 



Diameter of circular pool four feet. Depth three and one 

 half feet. 



Shallow arm. Length six feet. Width three feet. Depth 

 three feet. 



Flora : Kind and Distribution. 



No plants occur on the south side of the circular pool except 

 at the very edge. On the other sides they extend down two 

 feet. The bottom of the shallow arm is abundantly covered 

 with plant life. 



