8 



maritima, Opuntia Rafinesquii and Solidago 

 sempervirens are among the other halophytes 

 and xerophytes met with. Juniperus Virgin- 

 iana, Mijrica ceri^era and Prunus maritima are 

 the only considerable shrubs found here. 



On the more barren spots farther from the 

 spray n umerous tufts of Hudsonia tomentosa 

 and C^acZonmrawg'i/'mrta are interspersed with 

 Geasta and other Cladonias. Several other 

 species of lichens and several woody toad- 

 stools are found on the stems of the dead 

 clumps of Prunus. 



In the quiet mud-bottomed pools a hun- 

 dred yards back from the outer beach, 

 which are flooded at high water by salt 

 creeks, Spartina polystachya forms thick 

 growths, along the edge of which grow Sali- 

 cornia, Buda marina and several genera of 

 Schizophycetje with many green and red algse. 



Farther in from the Sound the shores of 

 the Harbor are scattered with boulders on 

 which are found many rock-bearing algse. 

 Among the Chlorophycese, e. g., Bryojjsis and 

 various species of Cladophora and Entero- 

 morpha are found ; while the Phseophycese 

 are represented by such genera as Edocarpus, 

 Sphacelaria, Pundaria, Chorda, Mesogloia, 

 Fucus, Ascophyllum and Sargassuvi ; and 

 such genera of the Rhodophycese as Chan- 

 transia, Nemalion, Ceramivm, Callithaynnion, 

 Griffithsia, Polysiphonia and Chandriopsis are 

 abundant at or just below the lower side- 

 mark. On the beach near these boulders 

 several interesting fresh-water algse are 

 found growing in springs which flow from 

 the top of a stratum of clay just at high- 

 water level. 



In the quiet brackish covers near the 

 inner end of the harbor Chondriopsis, Grin- 

 nellia, Dasya, Rhabdonia and Gracillaria, with 



