128 THE SAND STRAND FLOBA 



Asparagus officinalis L. 



Perennial, with creeping rootstock, and annual branching stems, 

 erect, 3—6 dm. high; leaves short, subulate; flowers small, greenish 

 white. 



On marine sands of Western Asia, Mediterranean, and Western 

 Europe northward to English Channel; escapes to similar localities in 

 E. America, according to Professor Dudley. 



JUNCACEAE. 



J uncus acutu-s L. 



A form closely approaching J. maritimus Lam. and found on marine 



sands on the Atlantic and Mediterranean coasts of Europe, and on the 



Caspian Sea, but not on the Baltic or North Sea, nor in the Southern 



hemisphere. 



J. anceps Laharpe var. atricapillus Buch. 

 Piootstock creeping; stems erect, compressed, leafy. 

 Observed only between the dunes on the E. Friesian Islands off the 

 German shore of the North Sea. 



J. balticus Willd. 



Bootstock creeping; stems hard, 3 — 6 dm. high, cylindrical, leafless, 

 sheathed at base by brown scales. 



In high northern latitudes in Europe, Asia, and America, found, as 

 far south in the United States as California. Not confined to coastal 

 sands. 



J. hufonius L. 



Small annual, pale-colored; stems numerous, tufted, 3 — 20 cm. high, 

 branching; leaves short, slender. 



Occurs almost everywhere, and is common in moist places between 

 the dunes. 



/. capitatus Weig. 



Annual, slender, tufted, 5—8 cm. high; stems numerous; leaves 

 short, slender. 



Marine sands of Southern Sweden, Northern Germany, Holland, 

 Western and Southern Europe. 



J. compressus Jacq. var. Gerardi Bab. 

 Perennial, with creeping rootstock; stems 30—45 cm. high, erect, 

 slender, compressed at base, with a few radical leaves, narrow, grooved. 



