OF MARINE COASTS. 137 



Coastal sands of Europe, Western Asia, Mediterranean, and North 

 America, from Nova Scotia to Khode Island on the Eastern coast, and 

 on the Pacific to San Francisco. 



0. stricta, Hook. f. 



Tufted, glabrous, erect annual, 3 — 5 dm. high; leaves narrow, erect, 

 with broad sheaths. 



On sea shores of New Zealand, Tasmania, and Australia, from Vic- 

 toria to Western Australia. 



Hordeum maritimum With. 

 Annual, coarse, tufted, stems decumbent at base, 3 — 6 dm long; 

 glaucous. 



Marine coasts of Western Europe, and of the Mediterranean. 



Imperata arundinacea Cyrillo. 



Perennial grass, with long roots and 3 — 10 dm. high erect culms; 

 leaves erect, narrow, often longer than the stem. 



Widely distributed in the Mediterranean countries, Southern and 

 Western Asia, Cape Colony, Australia, and Polynesia. Often planted 

 as a sandstay especially in wet localities. 



Ischaemum muticum L. 

 On tropical coasts of Asia, Polynesia, and Queensland, southward to 

 Eockingham Bay. 



Koeleria cristata (L.) Pers. 



Tufted, pale green, pubescent or silky perennial; stoloniferous root- 

 stock; stem 3 — 9 dm. high, slender; sheaths striate, ligule very short; 

 blades narrow, obliquely auriculate at the base. 



A very variable plant, common on coastal sand dunes, but not con 

 fined to these, in Europe, Central Asia, America, New Zealand, and in 

 a few places in Australia (probably introduced). 



Lagwrus ovatus L. 

 Annual, erect, 10 — 30 cm. high, leaves hoary, sheaths swollen. 

 Common on coastal sands of Western Europe, from Mediterranean 

 to the English Channel. 



Lepturus incurvatus Trin. 

 Annual, decumbent, much branched at base; 10 — 30 cm. high, with 

 short, fine leaves. 



IAbrary Publications. 9 



