CONTRIBUTIONS TO A FLORA OF PORTLAND. 137 



purposes from material unfit for the food of man. 

 This industry, pursued at length by a few old women, 

 has now died out. A Paper on " ' The Portland 

 Arrowroot,' " by the late Thomas B. Groves of 

 Weymouth, is published in Phytol. IV., p. 1030." 

 Flo. Bris., p. 605. 

 Triglochin palustre, L. Marsh Arrow-grass. Native. II. 



Rare. Culverwell, 1881. 

 T. maritimum, L. Sea Arrow-grass. Native. II. Rare. 



Culverwell, 1881. 



Eleocharis palustris, Roem. & Schult. Creeping Spike- 

 rush. Native. II. Scarce and local. East and West 



Weares. Culverwell. 

 E. uniglumis, Schultes. Schultes' Club-rush. Native. II. 



Very rare. Near Lower Lighthouse ; Mansel-Pleydell 



in Flo. Dor. Ed. 2, p. 286. 

 Scirpus pauciflorus, Lightf. Chocolate-headed Club-rush. 



Native. II. Very rare. South-east side of Island ; 



Mansel-Pleydell. ! 



S. filiformis, Savi. (Savii, Seb. & Maur.). Savi's Club- 

 rush. Native. II. Var. monostachys. Very rare. 



North -West Undercliff ; a few plants only ! H. 



Groves. Recorded (as S. Savii S. & M.), by Sir W. 



Hooker from " East Cliff," Mrs. M. Frampton MS : 



probably the West Undercliff was intended. 

 S. Tabernaemontani, Gmel. Lesser Bulrush. Native. II. 



Very rare. Near Lower Lighthouse. 

 S. maritimus, L. Sea Club-rush. Native. II. Local. 



Shore between old Chesil railway terminus and Portland 



Castle, 1880. 

 Eriophorum angustifolium, Roth. Common Cotton-grass. 



Native. II. Very rare. Near Lower Lighthouse ; 



first record H. Groves, circa 1856. ! 

 Carex arenaria, L. Sea Sedge. Native. I. Freq. Between 



Smallmouth and Chesil. 

 . vulpina, L. Great Sedge. Native. II. Com. in East 



Weare. 



