-,, JUNCACEAE. 



luncus bufonius L. Annual, branching from the base, 5-30 cm. tall; leaf 



T, or involute, Blender; "flowers loosely scattered, usually on but one 



he long branches of the panicle; perianth segments pa e, scanous- 



margSed, ancJblate, acuminate; stamens 6; capsule narrowly oblong, with a 



Sort Muni beak; seeds very finely reticulate. Everywhere common. 



juncus sphaerocarpus Nees. Very similar to /. bufonius in all respects 

 ,„,. capsule which is globose. Probably common but rarely collected. 



Juncus dudleyi Wicgand. Densely tufted, stiffly erect, 30-50 cm. high; 



leaves short, usually less than half as long as the stems; auricles yellowish; 



panicle rather close'. 1 7 cm. long; perianth segments spreading, pale, 4-5 mm. 



slightly exceeding the 1-celled ovoid capsule. Common in low ground; 



, asDy distinguished by the cartilaginous auricles. 



Juncus tenuis Willd. Densely tufted, 15-30 cm. tall; leaves flat or some- 

 what involute, narrow, shorter than the stems; auricles whitish, 1-1.5 mm. 

 lowr panicle loose, seldom exceeded by the slender bract; perianth segments 

 1 meet tlate | tale, 3 4.5 mm. long;capsule ovoid, thin-walled, rounded at the apex, 

 1 -celled with 3 parietal placentae; seeds minutely reticulate. Very common. 



Juncus brachyphyllus Wiegand. Stems tufted, stiff, erect, 30-50 cm. high; 

 leaves flat, 1.5-2 mm. broad, only one-fourth to one-third the length of the 

 culms; inflorescence many-flowered, short and rather crowded, usually ex- 



ded by the bracts; perianth-segments subulate, acute; capsule oblong, the 

 triangular apex usually obtuse. Blue Mountains and Craig Mountains, Idaho. 



Juncus confusus Coville. Pale green, tufted, erect, the culms 40-50 cm. 

 hi.^h; leaves very narrow, flat or involute, one-half to two-thirds as long as 

 the culms; inflorescence dense, 5-20 mm. long, exceeded by the bracts; 

 perianth-segments lanceolate, acutish, 3.5-4 mm. long, the margins scanous; 

 i apsule oblong, the triangular apex retuse. Spangle, Suksdorf. 



Juncus longistylis Torr. Stems 30-60 cm. high; leaves 15-30 cm. long; 

 bract Bhorter than the inflorescence; panicle consisting of 5-20 heads, these 

 few-flowered; perianth segments lanceolate, acute or acuminate, pale brown, 

 smooth; itamens 6; capsule oblong, 3-angled above, much shorter than the 

 segments. 



Juncus regelii Buch. Perennial, stoloniferous, pale green; stems smooth 

 or minutely scabrous, 12-50 cm. high, erect; leaves flat, 1.5-2 mm. broad; 

 heads solitary or sometimes 2 or 3, globose, many-flowered; outer perianth seg- 

 ments lanceolate, acute, inner ovate, obtuse, all rough, brown with pale 

 margins; stamens 6; capsule longer than the perianth; seeds linear, tailed at 



•i end. In springy places, rare. 



Juncus orthophyllus Coville. Perennial, with creeping rootstocks; stems 

 10 7() (in. tall; leaves flat, 2-3 mm. broad, pale green, shorter than the 



•tlis, without ligules; flowers aggregated into few-flowered heads, these 

 panicled; perianth segments straw-colored, lanceolate, acuminate, scarious- 

 margined, rough, 5 mm. long; stamens 6; capsule 3-angled, oblong, acute, 

 short •beaked. ( lommoti along streams. 



Juncus mertensianus Bong. Stems terete, weak, crowded, 10-30 cm. 



from short en eping rootstocks; leaves 5—15 cm. long, about 2 mm. wide; 



arious; heads solitary, globose, dark brown, about 1 cm. broad; 



ith segments lanceolate, acuminate, 3 mm. long, exceeding the obtuse 



Ilk Moist meadows in the Blue Mountains at high altitudes. 



Juncus ensifolius VYiks. Rootstocks thick, creeping; stems leafy, 15-30 



i hea lobose, dark brown or nearly black; perianth segments 



cuminate, 7S mm. long; stamens 3 (rarely 6); capsule 3-angled, 



ng the perianth. In wet places especially in the moun- 

 tains. 



