OF MARINE COASTS. 127 



P radiata Don. 

 is found only on the established dunes and immediately inland from 

 these at Pacific Grove, and within a limited area in two other similar 

 localities, one in San Luis Obispo county, one in S'anta Cruz county, 

 California. 



HYDROCHARIDACEAE. 



Halophila ovalis Hook, f: 

 Submerged marine plant, common on the shores of Moreton Bay, 

 Queensland, and Port Phillip, Victoria. Also in Tasmania, New South 

 Wales, and South Australia, preferring muddy shores, but also on sand. 



IRIDACEAE. 



Sisyrrhinchiwm helium Wats. 

 A somewhat prostrate, low form is found on the dunes at Point 

 Pinos, Monterey, California, but it is not a different species, as it will 

 under cultivation in moist, rich soil exhibit exactly the same characters 

 as the inland form. This was tested by the author at Stanford University 

 in the summer of 1904. 



AMARYLLIDEAE. 

 Pancratium maritinwm B. 

 Perennial herb, with large bulb; leaves erect, long, broadly linear, 

 glaucous. 



Sandy sea shores of Western France, Iberian Peninsula, and Mediter- 

 ranean countries. 



LILIACEAE. 

 Allium arenarium L. 

 Stem 25 — 35 cm. high, single; leaves cylindrical, hollow, furrowed 

 above, with long sheaths; flowers red. 



Sand in a few places on the Baltic coasts. 



A. schoenoprasum L. 



Stems 2 — 3 dm. high, usually many together; leaves narrow, cylin- 

 drical, hollow, one sheathing the stem at base. 



In Northern Europe and Asia, and in mountains in Southern 

 Europe. Britton & Brown (Flora of Northern United States and 

 Canada) say regarding its distribution in America: 



"In moist or wet soil, New Brunswick to Alaska, south to Maine, 

 northern New York, Michigan, Wyoming, and Washington." 



