CLXXIII. QBAMINB^B. (J. D. Hooker.) 157 



12. R. nigrescens, Thw. Enum. PI. Zeyl. 364; leaf -base cordate, 

 spike fragile, gl. 1 of sessile spikelet ovate-oblong very obtuse or 3-lobulate 

 dorsally tessellately foveolate obscurely 2-winged in the upper third or tip. 

 Hack. 'Monogr. Androp. 296 ; Trim. Cat Ceyl. PI. 107. 



CEYLON ; Central Province, alt. 40CO ft., Thwaites. 



Stem tall, suberect, slender, glabrous. Leanes 4-8 in., linear-lanceolate, glabrous 

 or sparsely hairy, margins scabrid, base ciliate ; sheath glabrous or sparsely hirsute; 

 ligule rounded, ciliate. Spikes 2-3 in., solitary or 2-nate, axillary and terminal ; 

 joints as long as the spikelet, stout, margins smooth. Sessile spikelets in., ovate- 

 oblong; gl. I ovate, 9-nerved, wings scarious ; II elliptic, obtuse, gibbous, keel 

 winged below the tip ; III hyaline, oblong, obtuse, paleate, nerveless ; IV elliptic, 

 obtuse, emarginate. Pedicelled, spikelets ; gl. I smooth, striate, winged above on 

 one side, 7-9-nerved ; II 5-nerved, keel exceutric, winged ; III and IV as in the 

 sessile spikelet ; pedicel adnate to the joint. 



13. R. striata, Nees ex Steud. Syn. Gram. 361 ; leaf-base narrowed, 

 spikes fascicled, often on very long peduncles, gl. I of sessile spikelet oblong- 

 lanceolate shortly winged below the tip dorsally smooth with 4-6 often 

 interrupted grooves below the middle. Sack. Monogr. Androp. 301. 

 Wall. Gat. n. 8876, 8877. 



SIKKIM HIMALAYA, alt. 1-4000 ft., J.D.H., &c. SILHET and the KHASIA 

 HILLS, Wallich, &c. BUKMA and SINGAPORE, Wallich, &c. 



Stem 3-4 ft., slender, thickened under the spikes, smooth, branched above. 

 Leaves 2-4 ft. by -2 in., linear-lanceolate, setaceously acuminate, flat, midrib 

 broad ; sheaths glabrous, upper spathiform ; ligule very short, membranous. Spikes 

 1-2 in., pale, slender, terete, glabrous. Sessile spikelets as long as the joints ; 

 callus annular, glabrous ; gl. I obtuse, convex, many-nerved within, keels smooth ; 

 II chartaceous, ovate, subacute, acutely keeled, 1-nerved ; III ovate, acute, hyaline, 

 nerveless, paleate ; IV ovate, faintly 1-nerved. Pedicel of upper spikelet linear, 

 flattened, free or ^ or wholly adnate to the joint, tip hollowed, circular or compressed. 

 Hackel has two subspecies. 



Subsp. genuina; leaves 1-2 ft. by ^-f in., spikes in a simple lax panicle, joints 

 ofrachis scaberulous, sessile spikelets i in., pedicelled spikelets of one long obtuse 

 glume winged on one side. Of this there are two vars., o. glabrior, steins and 

 surfaces of leaves quite glabrous, margin of leaves and sheaths ciliate. Singapore 

 and Tavoy ; and ft. pubescens, stem above and surfaces of leaves pubescent. 

 Kh.isia Hills. 



Subsp. khasiana ; stem very tall much branched, leaves 3-4 ft. by 1-2 in., spikes 

 1-1 1 in. in a compound panicle; joints smooth, sessile spikelets ^ in., gl. I more 

 brondly winged, pedicelled spiktlet in., oblong. R. khasiana, Munro mss. 

 Sikkim and the Khasia Hills. 



14. R. glandulosa, Trin. in Mem. Acad. Petersb. Ser. 6, ii. (1833) 

 250; perennial, spikes fragile, sessile spikelets ovate-lanceolate, gl. I 

 narrowly winged in thfi upper third, dorsally scaberulous, margins below 

 with on each side 5-7 upcurved mucros or tubercles. Hack. Monogr. 

 Androp. 302 ; Miq. Fl. Ind. Sat. iii. 408. Coelorachis mnricata, Brongn. 

 in Duperr. Voy. Bot. i. 65, t. 14. Ophiurus muricatulus, Steud. in Zoll. 

 Syst. Verz. 57, Syn. Gram. 360. Kottboellia ?, Wall. Cat. n. 8887 B. 



BURMA, Wallich. MALAY PENINSULA; Singapore, Wallich', Malacca, Griffith', 

 Perak, King's Collector; Pahang, Ridley.' DISTRIB. Java, Philippines. 



Stem 3-8 ft., tall, stout, branched, nodes pubescent or bearded. Leaves 2-3 ft. 

 by ^-1 in., linear, caudate- acuminate, base usually fimbriate, margin scabridly 

 serrulate ; sheath bearded at the mouth ; ligule densely hairy. Spikes< many, 

 2--4 in., slender, terete, pale or violet. Sessile spikelets i \ in., 1-fld, rather 

 shorter than the glabrous joints ; gl. I flat, obtuse, Uorsally scaberulous; II charta- 



