134 CLXXIII. GRAMINEJE. (J. D. Hooker.) [Ischcemum. 



Enum. PI. Zeyl. 365 ; Wight Cat. n. 1693 ; Wall. Cat. n. 8588 ; Duthie 

 Grass. N.W. Ind. 16; Benth. Fl. Hongk. 426. S. scrobiculatus, Nees in 

 Wight Cat. n. 1694, & zeylanicus, Nees ex Steud. 1. c. 373, 377. S. villo- 

 sus, Nees in HooTc. fy Arn. Bot. Beech. Voy. 242. Andropogon bifidus, 

 incertus, Macraei, simillimus, patenti-villosus, & Eetzii, Steud. I. c. 373- 

 377. A. Macrasi, Steud.Tc. 377. A. malacophyllup, Hochst. ex Steud. I. c. 

 372. Spodiopogon, Wall. Cat. n. 8859, 8860, 8862. 



BENGAL and the LOWER HIMALAYA, from Nepal to Assam, SILHET and BUEMA, 

 and southwd. to TRAVANCORE, the LACCADINE ISLDS,, Alcock, and GT. Cocos 

 ISLD., Prain. CEYLON. DISTRIB. China, Malaya, Australia. 



Stem 6 in. 2 ft., stout or slender, tufted, leafy, sometimes creeping; nodes 

 glabrous or bearded. Leaves 2-6 in., glabrous pubescent or villous ; sheath 

 glabrous or hirsute; lignle short, ciliate. Spikes 1J-2 in., rather stout ; joints and 

 pedicels = about \ the spikelets, straight or incurved, ciljate, truncate. Spikelets 

 i in. ; gl. I polished, glabrous or villous, sometimes pitted, upper part scrobiculate 

 or not, terminal wings erose or ciliolate, scaberulous, margins broadly inflexed 

 below; II glabrous, or dorsally ciliate, aristulate ; III oblong, 1-3-nerved, ciliate, 

 paleate, male ; palea with a chartaceous lanceolate centre, and broad hyaline wings ; 

 IV glabrous or ciliolate, awn very slender, about twice as long as the spikelet. 

 Pedicelled spikelets rather smaller than the sessile, gl. I acute. A very common 

 and variable plant, of which Hackel has 3 varieties and 4 Indian subvarieties as 

 follows : 



Var. a. genuinum, Hack.; joints and pedicels diverging at the base, spike- 

 lets continuous with the callus, gl. IV of pedicelled spikelets usually awned. 

 1, prorepens, stem creeping, branches erect, gl. I not scrobiculate ; 2, scrobiculatum, 

 habit of a, spikelets smaller, gl. I scrobiculate. 3, malacophyllum, tall, gl. I 

 broadly winged at the tip, keel of II ciliate. 4, villosum; leaves and sheaths 

 villous. 



Var. /3. Wallichii, Hack. ; tall, joints and pedicels not divergent at the base, 

 sessile spikelet suddenly constricted at the long bearded callus, gl. IV of pedicelled 

 spikelet imperfectly awned. 



Var. 7. longipilum, Hack. ; joint and pedicels as in j8. Spikelets glabrous with 

 a long bearded callus, pedicelled spikelet long-awned. 



17. I. heterotrichum. Sack. Monogr. Androp. 220 ; stem prostrate 

 then ascending, leaves linear-lanceolate from a rounded base, spikes 2 

 stout erect, gl. I of sessile spikelet rhombic-lanceolate upper part triangular 

 acute dorsally smooth glabrous 4-nerved tip membranous 2-toothed keels 

 broadly winged, II subcoriaceous keel winged above, III ovate 3-nerved, 

 IY shorter broadly oblong shortly 2-toothed awned in the notch. PAndro- 

 pogon comorensis, Steud. Syn. Gram. 431. 



NICOBAR ISLDS., Jelinek. DISTRIB. Madagascar, Seychelles. 



Stem about 20 in. high, slender, compressed, quite glabrous. Leaves 2-6 by 

 75-l in., glabrous or base fimbriate, margins undulate, scabrid, base contracted at 

 the junction with the compressed loose keeled sheath ; ligule very short, truncate, 

 ciliate. Spikes 2-2^ in., erect, compressed, joints and pedicels half as long as the 

 spikelet, bearded. Sessile spikelet in. ; callus bearded at the base ; gl. I tip mem- 

 branous 2-toothed, 4-nerved above, margins involute below the middle j II mucro- 

 nulate, margins ciliolate j III shorter, chartaceous, ovate, acuminate, 3-nerved 

 ciliate, paleate ; IV short, ciliolate, awn more or less imperfect confluent with the 



fl. Pedicelled spikelets ^ in., gl. I winged from below the middle upwards, 

 -nerved glabrous. Descript. from Hackel. In a Seychelle Isld. specimen which I 

 have examined the keel of gl. II is not dorsally winged, and gl. IV is hyaline 

 5-nerved with lanceolate acuminate ciliate lobes. 



