CLASS VI. ORDER I. 147 



163. JUNCUS. 

 JuNcus EFFUsus. L. Soft Rtish. Bulrush. 



Gulni naked, straight; panicle lateral, loose, thrice 

 compounded ; capsules obtuse. *S'm. 



Found every where in moist land, growing commonly in 

 bunches. Steins perfectly simple, smooth, round, and leafless, 

 sheathed at the base and filled with spongy pith. Panicle pro- 

 ceeding from a fissure in the side of the stem, much branched, 

 and bearing many small green flowers. — June, July. — Perennial. 



JuNcus FiLiFORMis. L. Filiform Rush. 



Cuhn naked, filiform, nodding, panicle lateral, 

 bracted, nearly simple, capsule roundish. 



Resembles the foregoing, but more slender, nodding, and the 

 panicle further below the top. — On the borders of alpine ponds 

 on the White mountains. Mr. Greene. 



JuNcus TRiFiDus. L. Trifd Rush. 



Culm naked, terminated by three leaves and three 

 flowers. 



A small rush, abundant near the summit of the White moun- 

 tains, having a sessile spikelet of a few flowers supported by 

 long bractes or terminal leaves. — July. — Perennial. 



JuNcus TENUIS. WHlcl. Slender Rush. 



Culm roundish, undivided ; leaves linear, channel- 

 led; corymb terminal; leaves of the calyx acuminate, 

 larger than the obtuse, three sided capsule. Willd. 



A small, hardy species, common about foot paths and road 

 sides. Stem roundish, leafy at base. Leaves slender, channel- 

 led on the upper side. Corymb or cyme terminal, unequal, 

 invested with a long leafy involucre. Capsule obtuse, a little 

 shorter than the calyx. — June. — Perennial. 

 JuNcus BUFONius. L. Tottd Rush. 



Culm leafy, dichotomotis; leaves angular, subseta- 

 ceous; flowers oblong, solitary, sessile. 



A small rush of wet grounds, sometimes viviparous. — July. 



