204 PLANTS OF MASSACHUSETTS. 



L. bulbosus. L. Black Rush. Has a deep-green color, and 

 dark-colored spikes ; about salt marshes, and " makes good hay." 

 Big. Stem erect, leafy, and in tufts ; August. 



J. polycephalus. Mx. Many-headed Rush. Allied to J. 

 nodosus ; often grows with it ; has many heads of flowers in a 

 compound panicle ; often 2 feet high, and made into coarse hay ; 

 July. 



J. acuminatum. Mx. Grows about 20 inches high ; common 

 in bogs ; a coarse grass, leafy ; flowers in a compound pani- 

 cle ; leaves few, shorter than the stem, with knot-like joints ; 

 July. 



J. marginatus. Rostk. Not a common plant, like the pre- 

 ceding ; grows in low grounds ; stem compressed, 2 or 3 feet 

 high, with flat, smooth leaves ; August. 



Two or three other species grow on the White Mountains of 

 New Hampshire, in subalpine districts. These, with the pre- 

 ceding, are the greater part of those found in this country. Gen- 

 erally they are not eaten by cattle or horses, even in their young 

 state, and are little better than weeds. 



Luzula. DC. 



De Candolle formed this genus of plants from the flat-leafed 

 rushes, which had been ranked with the Junci, and in the genus 

 Juncus. 



Valves of the capsule without partitions ; 1 seed affixed to the 

 bottom of each cell. 



L. pilosa. Willd. Hairy Rush. From 6-12 inches high, 

 with numerous, radical, hairy leaves ; flowers in cymed panicles ; 

 woods ; April. 



L. campeslris. DC. Common Hairy Rush. About the 

 height of the preceding, cespitose at the base, flowers in terminal 

 panicles, somewhat umbel-like ; leaves hairy ; meadows ; April. 



