SHREVE, F., M. A. CHRYSLER, F. H. BLODGETT, and F. W. BESLEY. 
1911. The plant life of Maryland. Maryland Weather Serv. 
Spec. Pub., III. 
SPIERENBURG, D. 
1933. Een ziekten in het seegras (Zostera marina Le). Tijdschr. 
over Plantenziekten, 39: 193-199. 
STAUFFER, R. C. 
1937. Changes in the invertebrate community of a lagoon after 
disappearance of the eelgrass. Ecology, 18: 427-431. 
STEPHENSON, T. A., and A STEPHENSON. 
1954a. Life between tide marks in North America. IIIA. Nova 
Scotia and Prince Edward Island: description of the region. 
vourn.e Ecol., hoi): 14-45. 
19545. Life between tide marks in North America, IIIB. Nova 
Scotia and Prince Edward Island: The geographical features 
of the region. Jour. Ecol., 42(1): 46-70. 
STEVENS, N. E. 
1933. Disappearance of Zostera marina along the Atlantic coast 
of North America. Internati. Bull. Plant Protect., 7: 195-196. 
1935. Notes on Zostera marina in Upper Buzzards Bay, Massachusetts. 
Plant Dis. Rept., 19(4): 232-233. 
1936a. Environmental conditions and the wasting disease of 
eelgrass. Science, 84: 87-89. 
1936b. Notes on the condition of Zostera marina in Buttermilk Bay, 
Massachusetts. Plant Dis. Rept., 20; 279-281. 
1939. Environmental factors and the wasting disease of eelgrass. 
Rhodora, 41: 260-262. 
STEVENS, N. E., He R. ELLIS, and R. B. STEVENS. 
1950. Wasting and recovery of Zostera marina on the Atlantic 
coast of the United States. Plant Dis. Rept., 34(12): 357-362. 
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