CYPERACEJ. (SEDGE FAMILY.) 513 
3. K. monocephala, L. * Heads single, globose, compact; spikelets 
1-flowered, monandrous, ovate, acuminate, the 2 superior scales striate, nearly 
smooth on the sides, serrulate-ciliate on the keel, the 2 inferior minute; nut 
somewhat orbicular ; involucre 3-leaved, one of the leaves erect, the others hori- 
zontal.” Torr. — Low moist places near Darien and Sunbury, Georgia. — Rhi- 
zoma creeping Culms 1° high. Head greenish, generally inclined. Leaves 
abruptly pointed. 
3. DULICHIUM, Richard. 
Spikelets linear, compressed, many-flowered. Scales imbricated in 2 rows, 
decurrent on the joints of the rachis. Perianth composed of 6-9 downwardly 
hispid rigid bristles. Stamens 3. Style 2-cleft. Nut lanceolate, compressed, 
long-beaked. — Perennial. Culms terete, jointed, leafy. Leaves numerous, 
3-ranked, linear or lanceolate, short and spreading. Spikes numerous, solitary 
in the upper axils, simple or the lower compound. Spikelets 8-14, 2-ranked, 
spreading, 6-10-flowered. Scales lanceolate, many-neryed, closely imbricated. 
Bristles nearly twice as long as the compressed or concave nut. 
1. D. spathaceum, Richard. — Ponds and ditches, Florida, and north- 
ward. Aug.-Sept.— Culms 19-2? high. Leaves 1'—3' long. news e 
12" long. Peduncles of the lower samar —_ "- cà: nte: 
4. HEMICARPHA, Nik: 
Spikes many-flowered, ovate, one or few in a terminal (apparently lateral) 
cluster. Scales imbricated in many rows, ovate or obovate. Inner scale single, 
behind the flower, very thin, minute. Perianth none. Stamens 1-2. Style 
2-cleft. — Small tufted annuals with naked culms, narrow radical leaves, and an 
erect mostly 1-leayed involucre. 
1. H. subsquarrosa, Nees. Culms erect, nearly terete (2/-4! high); 
leaf solitary, linear-subulate, concave, smooth, shorter than the culm ; involucre 
1-2-leaved, the lower one erect and continuous with the culm, much longer 
than the spikes, the other short and reflexed or wanting ; spikes 2 (rarely one), 
seemingly lateral ; scales brown, ovate-oblong, reticulated, the stout and greenish 
midrib prolonged into a thick and obtuse erect point; stamens 2; style deeply 
2-parted, smooth; nut oblong-obovate, minutely pitted in lines, — Low sandy 
places, Florida, and northward, Aug.- Sept. — Sheaths brown. Spikes 2-3” 
5. LIPOCARPHA, R. Brown. 
Spikes many-flowered, terete. Scales spatulate, imbricated in many rows, 
deciduous, the lowest empty. Interior scales 2, parallel to the exterior ones, 
membranaceous, enclosing the flower and nut. Stamens 1-2. Style 2-3-cleft. 
Nut compressed, 3-angled. — Culms jointless, re the base. Spikes in a 
Mu OT Involucre leafy, . 
Pop, Tad x 
; tern deem, ina comcat smooth ; involucre 15) 
