BIOI.OGICAL SURVEY OF WOODS HOL,E AND VICINITY. 



495 



Average Number of Gsnera and Species op Plants Taken per Dredge Haul at the Fish Hawk 



Stations. 



Groups. 



Chlorophyceje. 

 Phaeophyccae . 

 Rhodophyceae. 

 Zostera marina 



Vineyard Sound. 



Genera. Species. 



O. 03 



■9 



3-4 



0. 02 



1. o 



3-6 



Buzzards Bay. 



Genera. Species, 



0.05 

 1. 1 



3.8 



o. 05 

 1. 1 

 30 



Average Number of Genera and Species of Plants Taken per Dredge Haul at the Phalarope 



AND Blue Wing Stations (Inshore). 



Groups. 



Vineyard Sound. 



Genera. Species. 



Buzzards Bay. 



Genera. Species 



Cyanophyceie . . 

 Chlorophyceae. . 

 Phaeophycea; . . 

 Rhodophyce.'E. . 

 Zostera marina 



1.8 



7- 7 

 ■3 



0.03 

 •3 



3. 2 

 8.4 



■3 



0. I 



1. 3 

 4.8 



O. 1 



1-3 

 5-2 



Average Number op Genera and Species op Plants Taken at Each of the Foregoing Grolt>s 

 OP Stations, the Classes Being Combined. 



Average Number of Genera and Species of Plants Taken Upon Bottoms of "Sand," Division 



A (170 Stations). 



