IscJicemum.~\ CLXXIII. GRAMINEJS. (J. D. Hooker.) 127 



lets, fragile. Spikelets % to nearly ^ in., pale or dark, glabrous to villous ; gl. I from 

 broadly oblong with a rounded tip to oblong-lanceolate, symmetrical or slightly 

 curved or subdimidiate-oblong, upper i or ^ usually herbaceous nerved and with a 

 narrow ciliate wing on one or both sides ; II acute or acuminate ; IV about shorter 

 than II, 3-nerved below the insertion of the slender pale awn, which is rarely twice 

 the length of the spikelet ; upper spikelet not awned, pedicel very short. In Hohen- 

 acker's specimen of var. wangaloricum gl. IV is cleft f way down. In a small form 

 from Salsette (Bombay) Jacqueraont n. 374, the keel of gl. II is notched about the 

 middle, winged and serrulate thence to the tip. 



The following is Hackel's grouping of some of the more distinct forms of this 

 variable plant. It has the advantage of bringing the authorities and synonyms 

 into some order, but does not include all thaJlefinable forms, of which I have added 

 two : P 



Subsp. imherbe, Hack. 1. c. 203 ; spikelets glabrMis, except the callus. I. arista- 

 turn, Burm. ift. Ind. t. 21, f. 3 (bad). Meoschium aristatum, Beauv. Agrost. Ill 

 Var. imbricatum ; stout, erect, ligule rather long, gl. I of sessile spikelet 2-noduled 

 on each side, of pedicelled smooth. MVoschium imbricatum, Munro mss. Andro- 

 pogon imberbis, Steud. Syn. Gram. 378.' Bengal, the Khasia Hills, Ceylon (CP. 

 869). Var. mangaloricum, Hack. 1. c. 204 ; stout, erect, ligule short, gl. I of lower 

 spikelet surmounted by a broad scarious claw 3-4-noduled on each side, IV deeply 

 cleft. I. geniculatum, Hochst. in Hohen. PL Ind. Or. n. 184 (non Eoajb.) Meos- 

 chium Arnottianum, Nees in Nov. Act. Nat. Cur. xix. Suppl. i. (1843) 198. Andro- 

 pogon peniculntus, Steud. 1. c. The Concan and Malabar. Var. fall ax, Hack. I. c. ; 

 stem slender, base decumbent, ligule minute, gl. I of lower spikelets 3-4-noduled 

 on each side. Meoschium Arnottianum, Nees in Herb. Wight, n. 3077. M. mono- 

 stacbys, Wt. fy Am. ex Steud. 1. c. 369. Andropogon monostachyus, Steud. I. c. 

 Central India, the Deccan and Ceylon. 



Subsp. barbatum, Hack. 1. c. 204; spikelets more or less villous, gl. I of lower 

 spikelet 3-4-noduled on each side, the opposite nodules sometimes united by a low 

 ridge. I. barbatum, Refz. Obs. vi. 35 ; Kunth Enum. PL i. 513. Benth. Fl. Howgk. 

 425 ; Thwaites Enum. PL Zeyl. 364 ; Trim. Cat. Ceyl. PL 107. Meoschium bar- 

 batum, Beauv. Agrost. 111. Andropogon barbigerus, Steud. I. c. 376. Var. elatum 

 Hack. 1. c. 205 ; tall, branched, sheaths hirsute, ligule i- in. Meoschium elatum, 

 Nees ex Steud. I. c. 376. M. Neesianum, Am. ex Steud. I. c. 375. Andropogon, 

 Esenbeckii, and elatns, Steud. I.e. 375, 376. 



Subsp. Koenigii, Hook. f. ; tall, very robust, stem as thick as a swan's quill, leaves 

 1-H in. broad, spikes 3 very stout 4 in. long, spikelets in., gl. I of lower oblong- 

 lanceolate acute, IV shortly 2-fid lobes narrow. I. fasciculatum, Rottler mss. 

 Deccan Peninsula, Koenig. Probably a distinct species. 



Subsp. Rottleri, Hook, f.', stem stout 'much branched, spikelets in. closely 

 imbricate, ,gj.' I of lower linear-oblong,, of upper very broad broadly winged on one 

 side m-rvrs of both with anastomosing tips, gl. IV of lower cleft nearly to the base, 

 awn inserted in the cleft, of upper oblong bidt-ntate rnucronate, in the notch. I. 

 barbatum, Herb. Rottler. Probably from the Deccan. This also may be a distinct 

 species. 



2. I. rugrosum, Salisb. Ic. Stirp. Rar. i. t. 1 ; annual, erect, leaves 

 narrow base contracted, spikes 1-2, gl. I subdimidiately oblong obtuse very 

 convex, coriaceous below and closely transversely ridged membranous 

 above, IV cleft to below the middle.awn geniculately inserted at the cleft 

 dorsally lobes lanceolate. Gsertn. 7. Fruct. Suppl. i. t. 181 ; Roxb. fl. 

 Ind. i. t. 320 ; Hack. Monogr. Androp. 206 ; Thwaites Enum. PI. Zeyl. 364 ; 

 Trim. Gat. Ceyl. PI. 107 ; Duthie Grass. N. W. Ind. 18, Fodd. Grass. JV. 

 Ind. 31 ; Bend'le in Journ. Bat. xxxii. (1894) 103. I. Colladoa, Spreng. Syst. 

 i. 298. I. corrugatum, Herb. Ham. in Wall. Cat.v. 8864 E. I. Eoyleanum, 

 Mig. Fl. Ind. Bat. iii. 498 ; Duthie Grass. N. W. Ind. 18. I. segetum, Trin. 

 in Mem. Acad. Peiersb. Ser. vi. ii. (1883) 294. Meoschium GrifBthii, Nees A 

 Arn. vn Ann. & Mag. Nat. Hist. i. (1838) 284. M. Arnottianum, Nees, 



