CLASS VI. ORDER I. 149 



This plant sometimes undergoes a singular alteration in its 

 fructification from the bile of an insect. 

 JuNcus cAMPESTRis. L. Field Rush. 



Culm leafy. Leaves flat, hairy ; spikes terminal, 

 sessile, or pedunculated; capsules obtuse. Srn. 

 Syn. LuzuLA campestkis. Willd. 



Hardly half a foot high in dry ground, but in wet situations 

 much taller. Stem upright, round, leafy. Leaves short, grass 

 like, flat, acute, the edges fringed with fine, loose hairs. Spikes 

 terminal, umbelled, most of them on peduncles, irregular ovate, 

 obtuse, erect or nodding. Calyx leaves lanceolate, acute. Cap- 

 sules three seeded, inversely ovate, obtuse, shorter than the 

 calix. — May. — Perennial. 

 JuNCus MELANOCARPus. 3ix. Blacli fvuited Rush. 



Culm leafy, leaves sublanceolate, smooth; panicle 

 capillary, lax; flowers pedicelled. 

 Syn. LuztJLA melanocakpa. Desvaux. 



Culm a foot or more in height, smooth, leafy. Leaves linear- 

 lanceolate, glabrous, those of the root eight or ten inches long. 

 Panicle large, nodding, decompound, many flowered. Ultimate 

 corymbs of from four to six flowers, of which one is sessile, the 

 rest on capillary pedicels. Calyx acuminate. Capsule with a 

 short beak. — At the cascade of New river in the White moun- 

 tains. — June. 



JuNcus spicATTis. L. Spiked Rush. 



Leaves flat ; spike racemed, nodding, compound at 

 base; capsules acute. 

 Syyi. LxjzuLA spicata. De Cand. 



Culm slender, with an oblong, nodding head. — On the summit 

 of the White mountains, its only American locality with which 

 I am acquainted. — July. 



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