162 105. Juncus. 12. JUNCE^. PLmd.ph. 



Root black, creeping ; cidm 3 feet high, pale green, soft, 

 brittle, very finely streaked ; sheaths light brown, obtuse, 

 awned; panicle very much efFusetl and divaricated at the tip; 

 involitcram small, white, slightly sheathing ; flower small ; 

 Iractece very small, white, pointed; lobes of the perigonium 

 lanceolate, linear ; edge white ; ribs 2, slightly prominent ; 

 capsule sma!l, obovate, slightly retuse, very blunt, pale 

 brown, not shining ; style falling off. 



6. Juncus filiformis. Threadshape junk. 

 Culm naked, threadshape, drooping ; panicle lateral, 



scarcely branched, few-flowered ; capsule roundish. 



Juncus parvus, calamo supra paniculara compactain'Iongius producto, 

 Raii Syn. 432, 6. 



Juncus filiformis, Lin. S. P. 467. 

 Least rush. 



Mountain pastures ; perennial ; August. 



Root creeping, horizontal, fibrous, slender, long ; culm 

 upright, threadlike, 6 in. high ; tip pointed and channelled ; 

 light green; sheaths few, unequal, cut, obtuse, awned, or 

 slightly leafy; panicle about the middle of the culm; flowers 

 nearly sessile becoming peduncled; involucra small, scariose; 

 upper long, bristlelike; edge of the pit broad, scariose; 

 hractece scariose, unequal; sepales 3-ribbed; capsule globose, 

 obtuse, shining, the length of the perigonium. 



b. Leaves channelled. 



7. Juncus squarrosus. Scurfy junk. 

 Culm naked ; leaves bristlelike, channelled ; panicle ter- 

 minal, long ; capsule obovate, obtuse. 



Juncus montanus palustris, Raii Syn. 432, 7. 

 Juncus squarrrsus, Lin. S. P. 465. 

 Moss rush. Goose corn. 



Barren mountain heaths; perennial; June, July. 



Root fibrous ; leaves densely tufted, bristlelike, stiff, slen- 

 der, pointed, smooth, dilated at bottom, sheathing ; outer 

 sheaths scaly, striped, broad; culm leafless, 12 inches 

 long, strait, stiff, inclining to angled ; particle upright, 

 branched, clustered; floral leaves membranaceous, cut, 

 sheaths ending in a bristleshape leaf as long as the panicle; 

 peduncles 1 or 2-flowcred ; jimvrets large; brnctea^ ovate, 

 acute, tip scariose; sepales nearly equal, lanceolate, obtuse; 

 edge scariose j capsule obovate, 3-sided, obtuse, mucronate. 



