250 FLORA. 



about I mm. long; capsule brown, U-2 times as long as the perianth, narrowly 

 oblong, tapering to an acute summit, imperfectly 3-celled; seed 2.5-4 mm. long, 

 contracted into long slender tails. Newf. to Alaska, south along the Rocky Mts. 

 to Colo. In Europe and Asia. 



21. Juncus st^gius L. MOOR RUSH. (I. F. f. 939.) Rootstock none ; stems 

 0.7-3 dm. high? single, or few together, erect, l-3-leaved below; leaf-sheaths 

 1-2 cm. long, clasping, auriculate; blades 2-IO cm. long, slightly compressed, 

 channeled on the upper side, tapering to a blunt point; inflorescence of 1-4 heads; 

 heads i-4-flowered; perianth 3-5 mm. long, pale, its parts lanceolate, 3-nerved, 

 equal; anthers oblong, shorter than the filaments; capsule 6-8 mm. long, pale 

 brown, spindle-shaped, mucronate, 3-celled below, few-seeded; seed spindle shaped, 

 2.5-3 mm. long, with a loose coat, narrowed into thick tails. Newf. to Me., N. 

 N. Y., Mich, and Minn.; also in Br. Col. and Europe. 



22. Juncus biglumis L. TWO-FLOWERED RUSH. (I. F. f. 940.) Stems 

 0.2-2 dm. high, loosely tufted on a branched rootstock, nearly terete. Leaves 1-5, 

 all basal, the outermost sheath usually 8 mm. long or less, the innermost sometimes 

 much longer, the blades nearly terete; inflorescence a capitate cluster of 1-4 

 flowers, its lowest bract erect, foliose; perianth 3-3.5 mm. long, dark brown, its 

 parts oblong, obtuse, nearly equal; anthers linear-oblong; capsule longer than the 

 perianth, cylindric-oblong, 3-sided, retuse at the summit; purplish black, or with 

 purple-margined valves, imperfectly 3-celled; seed 0.5-0.6 mm. long, fusiform, 

 narrowed into short stout tails. Baffin Bay to Alaska and Br. Col. Also in Europe 

 and Asia. 



23. Juncus triglumis L. THREE-FLOWERED RUSH. (I. F. f. 941.) Stems 

 7-17 cm. high, loosely tufted on the branched rootstock, erect, terete. Leaves 1-5, 

 all basal, with sheaths clasping and conspicuously auriculate, the blades subterete, 

 blunt; inflorescence a capitate cluster of 1-5 (usually 3) flowers; the lowest 2 cr 3 

 bracts usually brown, obtuse and membranous; perianth 3-4 mm. long, its parts 

 oblong-lanceolate, obtuse; anthers linear, short; capsule about equalling the peri- 

 anth, oblong, obtuse, mucronate. 3 -angled, imperfectly 3-celled; seed about 2 mm. 

 long, oblong, abruptly contracted into slender tails. Lab. and Newf. to Alaska, 

 south in the Rocky Mountains to Col. Also in Europe and Asia. 



24. Juncus pelocarpus E. Meyer. BROWNISH-FRUITED RUSH. (L F. f. 942.) 

 Rootstock slender; stems 0.7-5 ^ m - high; i-5-leaved; basal leaves 2-4, mostly with 

 slender terete blades seldom exceeding 12 cm. in length; inflorescence I cm. in 

 height or less; panicle loose, with distant heads of I or sometimes 2 flowers; peri- 

 anth 1.5-3 mm - l n g' th e parts linear-oblong, obtuse or the inner sometimes acute; 

 stamens 6; anthers slightly exceeding the filaments; style commonly I mm. long; 

 capsule subulate-linear, I -eel led, its slender beak exceeding the perianth; seed 

 oblong to obovoid, 0.4-0.5 mm. long, reticulate in about 24 rows. Newf. to N. J. 

 and Minn. 



Juncus peloc&rpus subtllis (E. Meyer) Engelm. Much smaller, depressed, i-few- 

 flowered. N. Me. and adjacent Can. 



25. Juncus bulbosus L. BULBOUS RUSH. (I. F. f. 943.) Tufted, 5-20 cm. 

 high ; usually bulbous. Leaves of two kinds, the basal mostly submersed, filiform, 

 the cauline stouter, all with auriculate sheaths, panicle of i-io heads; heads 4-15- 

 flowered, some of the flowers often transformed into tufts of small leaves ; perianth 

 2.5-3 mm. long, its parts nearly equal, linear-lanceolate, obtuse, brown, or with a 

 green midrib; stamens 3; capsule narrowly oblong, obtuse, mucronate, slightly 

 exceeding the perianth, brown above, i-celled; seed narrowly oblong, about 0.5 mm. 

 long, acute at base, obtuse and apiculate above, 25-3O-ribbed. Lab. and Newf. 

 Common in Europe. 



26. Tuncus militaris Bigel. BAYONET RUSH. (I. F. f. 944.) Stems 0.5- 

 1.2 m. nigh, erect, stout, 3-6 mm. thick below, arising from a stout roctstock. 

 Leaves of two kinds, the submersed borne in fascicles on the rootstock and develop- 

 ing filiform blades sometimes 5 dm. long; basal leaves reduced to loose bladeless 

 sheaths; stem leaves I or 2, the lower with a long stout terete blade, the upper, 

 when present, reduced to a bladeless sheath; inflorescence 7-15 cm. high; heads 

 6-i2-flowered; perianth 3-3.5 mm. long, its parts narrowly linear-subulate, the 

 inner longer than the outer; stamens 6; capsule ovoid, acuminate, beaked, i-cslled, 



