AND SOME OF ITS ALLIES 515 



spindle-shaped, distinctly caudate seeds, to which character must 

 be added the terete leaves and fuscous oblong capsules slightly- 

 exceeding the perianth. J. Vaseyi and /. Grcenci form a distinct 

 and easily recognized group among the forms of grassy-leaved 

 Junci. 



3. Juncus Greenei Oakes & Tuck. Am. Journ. Sci. 45 : 37. 1843 



Perennial, tufted : stem stiff and erect, quite stout, 3-7 dm. 

 high, terete, strongly grooved : leaves half as long as the culm or 

 less, flexuous, terete, the groove deeper than in the last ; at least 

 two sheaths blade-bearing, loose, not scarious : auricles very 

 short, thickish : inflorescence short (2—5 cm. long), crowded and 

 many-flowered, fuscous : bracts long and flexuous, much exceed- 

 ing the culm, filiform, spreading or reflexed ; bracteoles short, 

 rounded: perianth small (2.5 mm. long), fuscous, the parts all 

 nearly similar, triangular-subulate, acute, broad and short, midrib 

 green, margins broadly scarious : stamens 6, one half the length 

 of the perianth, anthers oblong-linear, equaling the filament : style 

 very short and stout, stigmas short : capsule narrowly oblong- 

 ovate, obtuse, much longer than the perianth, placentae meeting at 

 the axis : seeds oblong (.48-.54x.20 mm.), apiculate at each end, 

 coarsely reticulated, longitudinal ridges inconspicuous. 



In damp woods or grassy places, New Brunswick to New Jer- 

 sey near the coast, and sparingly through the lake region to Wis- 

 consin. Specimens examined from Maine, Massachusetts, Rhode 

 Island, New Hampshire, Vermont and Michigan. 



4. JuNCUS secundus Beauv. ; Poir. Encyc. Suppl. 3 : 160. 



1813 



J. tenuis secundus Engelm. Trans. St. Louis Acad. Sci. 2, 



450. 1866. 



Densely tufted, slender, wiry, strict and erect (3-5 dm. high): 

 culm nearly terete, strongly 6-8 -grooved above, light green : 

 leaves densely tufted, flat, one third length of culm or less, short 

 and very narrow; sheaths narrow (2 mm. wide or less) the upper 

 rather close, margins and rounded auricles membranous, not 

 scarious, all blade -bearing ; bracts one (rarely two), setaceous, 

 shorter than the medium-sized (3-8 cm. long) open inflorescence ; 

 branches of the latter strongly ascending, 3-7-flowcred, conspicu- 

 ously secund : bracteoles ovate-oblong, scarious, obtusish or cuspi- 

 date: perianth stramineous, rather small (2.5-3.5 mm. long), the 

 parts erect or only slightly spreading, all similar, broadly lance- 



