264 North American Cyper-acece. 
C. speciosus, Fahi, enum, 2, p. 364 ; Ram. 8f SchulL 2. p. 218 ; 
rurslhfl. 1. p. 58; Elliott, sk. 1. p. 72. 
Culm 2 — 4 feet high, rather acutely angled. Leaves 1 — 2 feet long, 
4 — 6 lines wide, deeply channelled, somewhat glaucous underneath, 
scabrous on the margin. Umbel about S-rayed ; the primary rays 2 — 3 
inches long, and more distinctly alternate than in most other Cyperi. 
Ochreee loose, obliquely truncate, terminating in two lanceolate points 
nearly an inch long. Involucre foliaceous, a little longer than the 
partial rays; the leaflets alternate like those of the rays. Spikes 
numerous, compound, with setaceous bractea) at the base. Spikelets 
subulate. ^^ Stamens 3. Style 3-cleft. Nut 3-angled, compressed, 
slightly incurved." — Elliott. 
Hab. In ditches and wet places, South Carolina. 
Elliott. Wilmington, North Carolina, Mr. Curtis! ; Virginia, 
Vahl ; New Orleans, Dr. IngciUs!; Middle Florida, Dr. 
Chapman ! 
Obs. My specimens of this plant are too young to exhibit the 
characters of the spikelet and fruit ; yet there can be little doubt 
of its being the C. speciosus of Elliott, as it is the only native 
species bearing conspicuous partial as well as general invo- 
lucres. Vahl's plant, which was described from specimens 
preserved in the Herbarium of the Jardin des Plantes in Paris, 
may be distinct from ours. He describes the spikelets as 
scarcely half an inch long, terete, 6-flowered, with linear scales. 
17. Cyperus repens, Elliott. 
Rhizoma creeping, tuberiferous ; umbel simple, 4 — 6-rayed ; 
involucre much longer than the rays ; spikes distichous ; spikelets 
10 — 14, approximated, somewhat spreading, 12 — 20-flower- 
ed, linear, compressed, obtuse ; scales oblong, rather acute, 
slightly mucronate, the margin scarious ; nut oblong, triquetrous ; 
style 3-cleft half-way down. 
C. repens, Elliott, sk. 1. p. 69 ; Schult. mant. 2. p. 112; Spreng. syst. 
p. 224. 
C. phymatodes, Muhl. .' gram. p. 23; Torr. ! fl. 1. p. 62; Beck! 
hot. p. 42 ; Gray ! Gram. Sf Cyp. part 1. no. 73; Link, jahrb. 3. p. 87. 
(fide Schult. mant. 2. p. 117.) 
C. tuberosus, Pursh, fl. 1. p. 52. (excl. syn.) 
