390 JUNCACEAE. 
23. Juncus triglumis L. Three-flowered Rush. (Fig. 941.) 
- Juncus triglumis I,. Sp. Pl. 328. 1753. 
Stems 3/-7’ high, loosely tufted on a branched root- 
stock, erect, terete. Leaves 1-5, all basal, with sheaths 
clasping and conspicuously auriculate, the blades sub- 
terete, blunt, 14’” in diameter, usually less than half 
the height of the plant; inflorescence a capitate clus- 
ter of 1-5 (usually 3) flowers, the lowest 2 or 3 bracts 
nearly equal, divergent, about as long as the flowers, 
usually brown, obtuse and membranous; perianth 
1}4//-2’’ long, its parts oblong-lanceolate, obtuse; sta- 
mens nearly as long as the perianth; anthers linear, 
short; capsule about equalling the perianth, oblong, 
obtuse, mucronate, 3-angled, imperfectly 3-celled; seed 
about 1/” long, its body oblong, abruptly contracted 
into long slender tails. 
Labrador and Newfoundland to Alaska, south in the 
Rocky Mountains to Colorado. Also in Europe and Asia. 
24. Juncus pelocarpus E. Meyer. Brownish-fruited Rush. (Fig. 942.) 
Juncus pelocarpus E. Meyer, Syn. Luz. 30. 1823. 
Rootstock slender; stems 3/-20’ high, 1~5-leaved; 
basal leaves 2-4, with loose auriculate sheaths, mostly 
with slender terete blades seldom exceeding 5/ in 
length; stem leaves 1-5, similar to the basal; inflores- 
cence 4’ in height or less; secondary panicles rarely 
produced from the axils of the upper leaves; panicle 
loose, with distant heads of I or sometimes 2 
flowers; perianth 3/’’-114’’ long, the parts linear- 
oblong, green to reddish-green, obtuse or the inner 
sometimes acute, the outer usually the shorter, 
all of them frequently modified into rudimentary 
leaves; stamens 6, about two-thirds as long as the 
perianth; anthers slightly exceeding the filaments; 
style commonly 14’’ and stigmas 1/’ long; capsule 
subulate-linear, its slender beak exceeding the peri- 
anth, 1-celled; seed oblong to obovoid, 1/’/-%’’ long, 
reticulate in about 24 rows, the areolae smooth. 
Newfoundland to New Jersey and Minnesota. 
Juncus pelocarpus subtilis (E. Meyer) Engelm. Trans. St. Louis Acad. 2: 456. 1866. 
Juncus subtilis BR. Meyer, Syn. Luz. 31. 1823. 
Much smaller, depressed, 1-few-flowered. Northern Maine and adjacent Canada. 
25. Juncus bulbosus I,, Bulbous Rush. (Fig. 943.) 
R y Juncus bulbosus I,. Sp. Pl. 327. 1753. 
Tufted, 2’-8’ high; stems erect, or procumbent and 
rooting at the joints, usually bulbous. Leaves of two 
kinds, the basal mostly submersed, filiform, the caul- 
ine stouter, all with auriculate sheaths 10’ long or less, 
the septa of the blades inconspicuous; panicle of I-10 
heads; heads top-shaped to hemispheric, 4-15-flowered, 
some of the flowers often transformed into tufts of small 
leaves; perianth 1'1;’/-14’’ long, its parts nearly equal, 
linear-lanceolate, obtuse, brown, or with a green mid- 
rib; stamens 3, shorter than the perianth; anthers a 
little shorter than the filaments; capsule narrowly ob- 
long, obtuse, mucronate, slightly exceeding the peri- 
anth, brown above, 1-celled; seed narrowly oblong, 
about 4’ long, acute at base, obtuse and apiculate 
above, 25-30-ribbed. 
Labrador and Newfoundland. Common in Europe. 
