Section IV. A CATALOGUE OF THE MARINE FLORA OF WOODS 



HOLE AND VICINITY. 



By BRADLEY MOORE DAVIS. 



This list is based chiefly on the general field studies of the writer for some eight sum- 

 mers, while in charge of the department of botany of the Marine Biological Laboratory, 

 and the special botanical operations of the biological survey of the Bureau of Fisheries 

 for the summers of 1903, 1904, 1905, and 1907. A six weeks' sojourn at Woods Hole in 

 April and May, 1907, extended materially the information relating to the spring algal 

 flora and seasonal habits of a number of species. There are included also records and 

 references of earlier collectors, W. G. Farlow, W. A. Setchell, W. J. V. Osterhout, C. P. 

 Nott, and others, and the more recent observations of F. S. Collins and Miss Lillian 

 J. MacRae. The records on the distribution of the algae are known personally to the 

 writer except where specific statement is made on the authority of another. 



The regions covered by this list comprise: (i) The immediate waters of Woods 

 Hole, (2) the deeper waters of Buzzards Bay, and (3) the deeper waters of Vineyard 

 Sound from the westerly entrance to a line drawn between East Chop and Falmouth 

 Heights. A few references to localities outside of the regions described above have been 

 included for certain species of especial interest. 



The dredging stations are given in two groups : 



1. Buzzards Bay, divided by a line drawn from the west end of Naushon (Robinsons 

 Hole) to Round Hill Point into (a) an upper and (6) a lower portion. 



2. Vineyard Sound, divided into three regions, (a) the westerly portion from the 

 entrance at Gay Head to a line drawn from the west end of Naushon (Robinsons Hole) 

 to Kopeecon Point (Cape Higgon) , (b) the narrow portion from this line to one connecting 

 Nobska Point and West Chop, (c) the easterly portion from the latter line to one drawn 

 between Falmouth Heights and East Chop. In both groups the stations that skirt the 

 coast are collected and introduced by the word "Inshore." The inshore stations were 

 dredged for the purpose of determining the conditions in relatively shallow water, from 

 i to 5 fathoms in depth. 



The inshore stations are almost wholly those designated by the lower numbers 

 1-167, an d were chiefly dredged by the Phalarope and Blue Wing (summers of 1904, 1905, 

 and 1907). The stations in the deeper regions of Buzzards Bay and Vineyard Sound 

 have the high numbers 7521-7602 (Vineyard Sound, summer of 1903), 7610-7675 

 (Buzzards Bay, summer of 1904), and 7676-7783 (Vineyard Sound, summer of 1905); 

 they were dredged chiefly from the Fish Hawk. Numbers followed by the word "bis" 



795 



