278 CYPERACEAE. 
5. Rynchospora capillacea Torr. Capillary Beaked-rush. (Fig. 652.) 
Rhynchospora capillacea Torr, Comp, 41. 1826. 
Culms filiform, tufted, glabrous, 6/-20’ tall. 
Leaves filiform, less than %’’ wide, much shorter 
than the culm, the lower very short; spikelets few, 
in 1-3 terminal and axillary loose clusters, oblong, 
acute at both ends, 2//-3/’ long; scales ovate-oblong, 
chestnut-brown, keeled, mucronate; bristles 6, slen- 
der, downwardly barbed, about equalling or becom- 
ing longer than the achene and tubercle; achene 
narrowly oblong, short-stalked, light brown, mi- 
nutely wrinkled, lenticular; style 2-cleft; tubercle 
compressed, triangular-subulate, dark brown, about 
one-half as long as the achene. 
In bogs, Vermont and Ontario to Minnesota, south 
to New Jersey, Pennsylvania and Michigan. July-Aug. 
Rynchospora capillacea laeviséta E. J. Hill, Am. Nat. 
: Io: 370. 1876. 
Bristles smooth. Northern Indiana and Michigan. 
6. Rynchospora Knieskérnii Carey. Knies- 
kern’s Beaked-rush. (Fig. 653. ) 
Rhynchospora KnieskerniijCarey, Am. Journ. Sci. (II.) 
4:25. 1847. 
Culms slender, tufted, smooth, 8/18’ tall. Leaves 
narrowly linear, flat, about %’’ wide, much shorter 
than the culm; spikelets numerous, in several distant 
compact clusters, oblong, acute, about 1/’ long; 
scales chestnut-brown, ovate; bristles 6, downwardly 
barbed, equalling the achene; achene obovate, lenticu- 
lar, brown, minutely wrinkled; style 2-cleft; tubercle 
triangular-subulate, pale, one-half as long as the 
achene or less and slightly’ decurrent on its edges. 
Pine barrens, New Jersey to Virginia. July—Aug. 
v — 7. Rynchospora glomerata (L.) Vahl. 
ig f Clustered Beaked-rush. (Fig. 654.) 
j, Whe : / Schoenus glomeratus 1. Sp. Pl. 44. 1753- 
yn Yip C1 | Rynchospora glomerata Vahl, Enum. 2: 234. 1806. 
i] "YO ig j : 
IL Y Ve } Rootstocks slender, culms smooth, triangular, 
/ SS : / slender or rather stout, 1°-3° high. Leaves 
\ : flat, 1/’-2’’ wide, rough-margined, shorter than 
the culm; spikelets several or numerous, in 3-7 
corymbose-capitate axillary rather loose clusters, 
oblong, narrowed at both ends, 113’/-2’’ long; 
scales lanceolate, rich dark brown; bristles 6, 
downwardly barbed, longer than or equalling the 
achene and tubercle; achene obovate, lenticular, 
smooth, dark brown; tubercle subulate, about 
as long as the achene. 
In moist soil, Maine to Ontario and Michigan, 
south to Florida and Texas. July-Sept. 
Rynchospora glomerata paniculata (A.!Gray) Chapm. Fl. S. States, 528. 1860. 
Rhynchospora paniculata A. Gray, Ann. Lye. N. Y.3: 201. 1835. ; 
Culm stouter, sometimes 4%° tall; leaves usually wider; spikelets very numerous in compound 
clusters. Maryland to Florida and Louisiana. 
Rynchospora glomerata minor Britton, Trans. N. Y. Acad. Sci. 11: 90. 1892. : 
Culms very slender, 5’-10’ tall; leaves !s'’ wide or less; clusters 2 or 3, small, with 3-10 spike- 
lets. Massachusetts and New Hanrpshire. 
Rynchospora glomerata discitiens Clarke; Britton, Trans. N. Y. Acad. Sci. 11: 89. 1892. 
Bristles smooth, or barbed at the apex only. New Jersey to North Carolina. 
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