Jiemirea.'] Cyperacece. 87 



2. C. riparium, Benth.Fl. Austral, vii. 405 (1878), var. crassnm, 

 <Clarke in Fl. B. Ind. vi. 675 (1894). Baumea crassa, Thw. Enum. 353. 

 C. P. 845. 



Fl. B. Ind. 1. c. 



Rootstock short, with stout, black root-fibres ; stem 3-4 ft., 

 stout, as thick as the thumb at the base, flattened, spongy, 

 striate, green, margins rounded, smooth ; 1. 2-3 ft., linear, 

 acuminate, pungent, very variable in breadth, up to nearly 

 ^ in., spongy, laterally flattened, biconvex, with rounded, 

 smooth margins, striate, sheaths long, distichous, open, very 

 thick, shining, margins scarious ; panicles 6-12 in., narrow, 

 rhachis stout, branches erect, with small, sheathing, leaf-like 

 "bracts at the base, rigid, compressed, scaberulous ; spikelets 

 |-| in., oblong, fascicled in shortly pedicelled sheaths, brown ; 

 glumes 4-6, coriaceous, lowest 1 or 2 small, ovate, then a 

 large, broadly ovate, acute, ciliate, keeled glume, with stamens 

 only, followed by a smaller with a perfect fl., terminal glume 

 narrow, empty; stam. 3, anth. long, tip cuspidate; nut oblong, 

 ^ in. long, obscurely trigonous, yellow- or red-brown, polished, 

 capped by the dome-shaped, pubescent style-base, style short, 

 rather rough, stigmas 3, very long. 



Moist region ; very rare. Ambagamuwa Dist. ; Wattawalla. First 

 •collected by Gardner. Fl. Jan., May, &c. 



Also in Bengal and the Khasia Hills (the type in W. Australia). 



15. B. £1*31 RE A, Aubl. 



A low, creeping, branching, rigid, glabrous perennial ; stem 

 several feet long, extensively creeping and rooting, loosely 

 sheathed, giving off short, erect, densely leafy flg. branches, 

 internodes 1-2 in. long, sheaths scarious, acuminate, flg. 

 branches clothed below with long, imbricating, scarious 

 sheaths ; 1. very many, 1-2 in. long, rigid, spreading and re- 

 curved, pungent, sheaths very short, open, closely imbricating; 

 spikelets small, short, i-fld., crowded in a terminal, ovoid, 

 lobed head ; glumes 4, 3 lower empty, second and third larger, 

 orbicular, concave, upper very thick, corky, i-fld.; hypogynous 

 scales or bristles o; stam. 3, anth. linear, acute; nut closely 

 embraced by the 2 upper glumes, linear-oblong, obtusely 

 trigonous, beaked, style very short, base thickened, stigmas 3, 

 .short. — Monotypic. 



R. maritima, Aubl. PI. Guian. i. 45 (1775). 



R. pedunculata, Br. ; Thw. Enum. 345. C. P. 3227. 



El. B. Ind. vi. 677. Beauv. Fl. Owar. t. 73. 



