132 I'HE SAND STRAND FLOEA 



C. maritima Muell. 

 Stems obtusely angled, smooth, clothed at base with sheaths break 

 ing up into threadlike fibers; leaves broad, pale. 

 Sea shores of the Baltic. 



0. pumila Thunberg. 



Rhizomes 'creeping, stems 10 — 20 cm. high; leaves longer, rigid 

 with subulate points. 



On sandy shores of extratropical S'outh America, New Zealand, 

 Chatham Island, Tasmania, and Australia, from Moreton Bay to South 

 Australia. 



C. salina Wahl. 



Perennial, with creeping rootstock, stem 6 — 12 cm. high, obtusely 

 angled, smooth; leaves pale, 2 — 3 mm. broad. 



Sea shores of Northern Europe and America, from the Arctic to 

 New England on the east coast, and to Northern California on the 

 Pacific coast. 



Eleocharis uniglumis Link. 



Perennial by horizontal creeping rootstocks; culms stout, terete or 

 somewhat compressed, cae'spitose, striate, 15 — 30 cm. high, higher when 

 in water; leafless, with one or two sheaths at the base. 



Wideh' distributed in Europe, Asia, North America, from Canada 

 to California. 



LepicSt&sperma gladiata Labill. 



Perennial rhizome ; rigid stems, 1 — 12 dm. high, flattened, but convex 

 on both sides about center, with acute smooth margins; leaves equitant, 

 usually about 1 cm. broad, length of stem. 



Common on coastal sand dunes in Tasmania and Australia, especially 

 in Victoria, South and West Australia. On the western coast of Austra- 

 lia also other species of this genus are met with. 



Remirea mariiima Aubl. 



Low, branching perennial; stems from creeping and rooting base, 

 ascending, 7—10 cm. high; leaves rigid, 2—7 cm. long, linear, with- 

 short, imbricate sheathing bases, pungent point. 



Sandy sea coasts of most tropical countries. Africa, East India, 

 Malayan Archipelago, Queensland, tropical America. 



