198 CLXXiii. GRAMiNEJE. (J. D. Hooker.) [Andropogon, 



shenths lax, upper smooth pale spathiform ; ligule 0. Spikes J-IJ in., flexuous, 

 noilding or cernaous silvery-green, lowest pairs of spikelets male ; pednncles i-J in., 

 capillary, axils with whorls of long white hairs ; rachis and pedicels slender, terete, 

 silkily ciiiate, upper hairs long. Sessile spikelets ^ in.; callus very short, silkily 

 bearded ; gl. I thin, pale, nerveless, with often a large deep dorsal pit, margins 

 narrowly incurved ; II acute, nerveless, dorsally silkily villous; III oblong or linear, 

 fljit, hyaline, obtuse, nerveless ; IV, awn about 1 in., slender, nearly smooth, base 

 acute. Fedieelled spikelets \ in. rather narrower than the sessile ; gl. I slightly 

 convex, quite smooth between the bristles, keels ciiiate, many-nerved j II ovate- 

 oblong, 3-nerved, ciiiate; III oblong, obtuse, eciliate; IV very narrow. 



60. A. mucronatnSj Anderss. ex Sack. Monogr. Androp. 577 ; stem 

 tall stout, internodes alternately flattened, sheaths terete, leaves linear- 

 lanceolate acuminate pubescent, spikes 5-10 flabeUately panicled, Bessile 

 spikelets y in. twice as long as the joints and ciiiate pedicels, callus hairs 

 half as long as the glumes, gl. I coriaceous obovate-lanceolate obtuse 

 glabrous shining 6-nerved pitted in the middle, keels setose above the 

 middle, II as long lanceolate acute glabrous except the ciiiate margin 

 3-nerved, IV a stout awn, gl. IV of pedicelled spikelets awned or mucro- 

 nate. 



IKDIA? Hugel. 



Stem 3-4 ft. or taller, simple, nodes 4, bearded. Leaves flat, base fimbriate; 

 sheaths smooth ; ligule rounded, ciliolate. Spikes solitary or opposite, shortly 

 peduncled, lower pair of spikelets male. Spikelets yellow-green ; gl. I not hyaline at 

 the tip; II obscurely keeled, dorsally shining; III linear-lanceolate, nerveless, 

 ciiiate; IV awn f in. long, stout; palea minute. Pedicelled spiieiets rather longer 

 and broader than the sessile ; gl. I obliquely elliptic-oblong, violet-oolrd., keels 

 setosely ciiiate nearly to the base, 13-nerved ; 11 narrower, lanceolate, acute, 5- 

 nerved, ciiiate ; III obovate-oblong, 1-nerved, ciiiate; IV as long, linear, 1-nerved, 

 glabrous. — Description from Hackel, who says it is a peculiar species, not allied to 

 the preceding, but rather to A. polyptychvis. 



** Cfl. lY of sessile spikelet %fid, awned in ike cleft. 



61. A. poljrptychus, Steud. 8yn. Gram. 380; stem slender erect 

 simple or branched below only, leaves erect strict softly hairy acuminate, 

 sheaths subcompressed, spikes 4-6 digitate simple or forked, joints and 

 ciiiate pedicels half as long as the sessile spikelets, gl. I of sessile spikelets 

 narrowly elliptic-obloug obtuse 4-7-nerved nearly flat glabrous, margins 

 narrowly incurved, keels strongly ciiiate above, II as long mucronate 

 3-nerved ciiiate, IV very narrow with 2 setaceous or lanceolate lobes. 

 Tliwaitea Enum. PI. Zeyl, 367; Trim. Cat. Oeyl. PI. 108; Sack. Monogr. 

 Androp. 578. 



Ceyion; at Pedrotallagalla, alt. 7000 ft., Thwaites. 



Stems densely tufted, 2-3 ft., as thick as a crow-quill below, smooth. Leaves 

 8-16 in. by ^-i in., rigid, erect ; ligule short, rigid. Spikes usually 3, very fragile, 

 2 in. long, shortly peduncled, joints and pedicels not farrowed ; axils hairy ; spikelets 

 closely imbricate, lowest pair male or neuter. Sessile spikelets i in., callus very 

 short, shortly bearded ; gl. I not winged, sometimes depressed on the median line ; 

 II 3-nerved, glabrous except the margins, acute or aristulate; III oblong-lanceolate, 

 acute, 1-nerved; IV rather shorter, nearly glabrous, awn ^| in. very slender; palea 

 minute, broadly ovate, ciiiate. Pedicelled spikelets broader than the sessile; gl. I 

 convex, many-nerved, narrowly winged on one «ide, tip membranous, keels ciiiate; 

 II oblong, acute, 1-nerved, ciiiate; III and IV small, oblong, obtuse, l-nervcd, 

 shortly ciiiate. 



