578 CYPERACE.E. 



communis, Kth. — 2'- 4' high; leaves 6"'-4'" bread ; achenium V" diam., white (or black). 

 — Hab. Jamaica!, Al. ; Antigua!, Wullschl. ; Trinidad!, Cr.; [Cuba ! to Brazil!]. 



92. S. melaleuca, Reichenb. Leaves linear : sheaths and branches of the narrow 

 panicle narrowly Z-winged •. ligule herbaceous, ovate-deltoid, bluntish ; $ glumes 1-androus ; 

 achenium ovoid-globose, or globose, smooth, shim»g,mucronate with the truncate style-base: 

 disk broadly %-lobed, interior adhering, exterior tardily separated. — 3'-l' high ; leaves 

 3»'_4'" broad; achenium \\"'-V" long, black, or white below a black summit. — Hab. 

 Jamaica!, Mac/-; Trinidad!, Lockh., Cr. ; [Panama!, Guiana!, Brazil!]. 



93. S. microcarpa, Ns. Leaves linear-acuminate, or lanceolate-linear : sheaths nar- 

 rovily i-winged, with the wings tapering into keels below : ligule herbaceous, rigid, ovate, 

 or ovate-lanceolate, blunt ; panicle narrow : branches 3-quetrous ; J glumes 3-androus, su- 

 perior ? shorter than the achenium ; achenium ovate-globose, smooth, shining, mucronate 

 with the truncate style-base: exterior disk truncate, entire, exceeding the interior 3-lobed 

 one : the former tardily separated. — Ophryoscleria, Ns. — 2'-4' high ; leaves 4"'-8'" broad; 

 achenium li'" long, white (or black).— Hab. Jamaica!, Al., Pd. ; Antigua!, Nichols.; 

 [Cuba ! and Mexico to Brazil !]. 



94. S. mitis, Sw. Leaves lanceolate-linear, nearly devoid of asperities : sheaths 3- 

 winged, with the wings tapering downwards : ligule herbaceous, rigid, bluntly deltoid ; pa- 

 nicle long, virgate : branches 3-gonaI; $ glumes 3 -audrous ; achenium globose, smooth, 

 shining, with a minute, papilliform point : disk entire, truncate, ciliate, adhering, not se- 

 parated from the interior, included 3-lobed one. — Ophryoscleria, Ns. — High, " trailing ;' 

 leaves 6"'-8'" broad ; achenium li'" diam., white. — Hab. Jamaica !, Al. ; Dominica !, Imr. ; 

 [French islands ! to Brazil]. 



** Panicle short, spreading. 



95. S. scindens, Ns. Stout; leaves long, linear : sheatlis not winged, Z-keeled, with 

 the keels very sharply retrorsely serrulate-scabrous: ligule herbaceous, marccscent, rounded; 

 panicle short, spreading : branches 3-quetrous ; $ glumes 3-androus ; achenium globose, 

 smooth, enamel-like-shining, with a papilliform point : interior disk 3-lobed, inserted into a 

 short carpophore, recurved at the margin of the lobes, exterior repand. — A " formidable 

 sedge, cutting the skin like a knife" (Imr.); leaves 4'"-5'" broad ; achenium 1£'" diam., 

 white (or bluish -black). — Hab. Dominica !, Imr., in woods ; [Cuba!, French islands]. 



96. S. latifolia, Sw. ! Stout ; leaves oblong -lanceolate, or lanceolate : sheaths 3- 

 winged, with the wings tapering towards the node : ligule herbaceous, bluntly deltoid ; 

 panicle short, dense, spreading: branches 3-quetrous, scabrous ; <J glumes 3(-2)-androus; 

 achenium globose, smooth, enamel-like-shining, with a terminal scar : interior disk inciso- 

 dentate and i-lobed, exceeding the exterior, the latter patellar, repand-entire. — 2'-6 

 high ; achenium 1"'-1£'" diam., white, bluish-variegated, or black. 



a. Leaves lanceolate, 1"-H" broad ; panicle pale ; achenium rounded above. — S. arun- 

 dinacea, Kth. (sec. Ns.) Schizolepis latifolia, Ns. 



J3. trigonocarpa. Leaves oblong-lanceolate, 1 V -24" broad ; panicle-branches green : 

 spikelets purplish-brown; achenium with a very blunt summit and 3 (scarcely visible) 

 angles above. — Mart. PL Bras. 3. t. 26. — Schizolepis trigonocarpa, Ns. 



y. sylvestris, Kth. Leaves l"-2" broad ; panicle-branches and spikelets purple ; ache- 

 nium with a blunt summit, devoid of angles. — Schizolepis sylvestris, Ns. Scleria cyano- 

 carpa, Kth. 



Hab. Jamaica !, Sw. (a), in dry mountain-woods of the Western districts ; Dominica !, 

 Imr. (0, 7), S. Vincent !, Guild, (y) ; Trinidad !, Lockh., Pd. (0, y), in woods and savan- 

 nahs ; [French islands ; Venezuela!, Guiana!, Brazil.]. 



97- S. flagellum, Berg., Sw. (non Kth.) High, trailing ; leaves linear-acuminate : 

 sheatlis not winged, S-gonal, retrorsely scabrous : ligule scarious-membranaceous, blunt ; 

 panicles terminal, and axillary, short, lax : branches 3-quetrous, hairy; <J glumes 3-androus, 

 superior ? including the achenium ; achenium globose, or ovate-globose, smooth, shilling, 

 with a terminal scar: disk short, subentire, exterior adhering, recurved at the tumid mar- 

 gin, including the interior -. the latter minnte, entire. — 8$, t. 77. / 1. Sw. Fl. t. 3.— S. re- 

 flexa, Kth. (Mastigoscleria, Ns.). Carex lithosperma, L. (Scirpus, L., ex syn. SI.). Schcenus 

 secans, L— 10'-15' high, catting ; leaves 2"'-3"' broad ; spikelets purplish-brown ; ache- 



