68 CLXxiiL GRAMiNEiE. (J. D. Hooker.) lOpUsmenus. 



6. Slender, diffusely branched below; spikes few, distant, very slender; spikelets 

 few, silkily villoujj, pale green, gl. I 3-5-nerved ; II 5-7-nerved ; III 7-9-nerved, its 

 palea narrow tip ciliate. — Of this there are three forms or varieties, a, stem 2 ft., rather 

 stout, leaves 3-4 in. linenr-lanceolate, spikes 2-3 in., awns I in. — Penane:, Curtis, n. 

 1102. — J, Very slender, leaves 1-1^ in., awns shorter. 0. iudicus, Wight Cat, n. 

 1652.— Ceylon, Thwaites (CP, 3963)—/?. very slender, leaves f-1 in., spikes 2-3, 

 short, gl. I as long as its awn. — Ceylon, Thwaites (CP. 3964), 



3. O. Burxnannii, Beauv. Agrost. 54; decumbent, flaccid, leaves ^-^ 

 in., spikes 3-5 f^hort. spikelets secnnd closely imbricate awns pale capillary. 

 Boem. i^ Sch, Si/8t, ii. 484. Knnth Bevis. Gram. i. 44, Enum, i. 139, Snpfl 

 101 ; Trill. Sp, Gram, Ic t. 193 ; Balz, ^ Gibs, Bomb. Fl, 291 ; N,E, Br. in 

 Gard, Chron. (1886) ii. 776 ; Franch, §• Sav. Enum. PL Jap, ii. 160 ; Wwht 

 Gat n, 16;>0 ; DiitJiie Grass. N.W. Ind. 8, Indig. Fodd. Grass, t. 47, Fodil 

 Grass. N. Ind. 13. 0. africanus, Beauv, Fl, Owar. ii. 15, t. 68, f. 1 ; Kui'fh 

 Enum. i. 141. O. albti*^, Roem. & Sch. Syst. ii. 890. O. brasiliensis, Eaddi 

 Agrost, Bras, 400. O.hTOjnoide^y Beauv. Agrost. 54; Bojer Hort.Maunt* 

 366. O. Humboldtianus, 'Nees Agrost Bras. 264; Presl Rel Hmnh 

 i. 322. ?0. indicns, Boem. ^ Sch. Lc. 484; Duthie Grass. N,W. Ind. 8. 

 Orthopo^on Burmanni, Br. Prodr. 194; Miq.Fl, Ind. Bat. iii. 442 ; Reichh 

 Ic. Fl. Germ. i. t. 28. Orth. albiis, Nees ex Steud, I.e. 44; Miq, I <"- 

 Tfinkum Bnrm^nm, Eetz, Ohs. iii. 10; Boxb. FL Ind. i. 298; Trin. Sp^ 

 Gram. let 193; Baker FL Maurit. 438. P. album & africanum, Potr. 

 Ennjcl. Suppl. iv. 274, 275. P. bromoides, LamJc. HI. i. 170, Encycl. iv. 

 742. P. hirtellum, Burm, Fl Lid. 24, t. 13, f. 1 {non Linn)\ Steud. 

 Ic. 44. P. japonicum. Steud, in Flora xxix. (1846) 18. P. multisetum. 

 HocJist FL Schimp. Abyss, n. 1469; A Rich. Terd. Fl. Abyss, ii. 377. 



EchinocUoa hirtella, Scliult, Mant. ii. 269.— Oplismenus, Wall Gat 8677, 

 8678. 



Plains of Ikdia. from Rohilkund to Bengal, Silhet and Chittagong, ascending 



the Himalaya in Sikkira to 5000 ft. Behab and Central India, CeTLON 

 Jaffna (Herb. Rottl.); Ferguson, — Distrib. Malay Islds., China, Japan, Afr. trop. 



Diffusely branched and rooting below, stems often almost filiform. Leave* 

 always small, sheaths glabrous or hairy. Panicle 1-4 in., inclined or nodding; 

 spikes rarely 1 in., very pale, rachis glabrous or pubescent. Spikelets -^-i '"• 

 (excl. awns) ; gl. I ciliate, 1-3-nerved, awn I in. or less; II 3-5.nerved, awned ; iH 

 5-9-nerved, shortly awned, palea 0. — Usually very distinct from 0. compositus, but 

 I have found specimens growing in the Jheels, with spikes nearly two inches long 

 and stouter awns, forming a transition to that plant. Wall. Cat. 8678 is a verf 

 small Silhet form, with ovate leaves ^- J in. Clarke found it also in Silhet. -^^' 

 africanus U the earliest name for the species under Oplismenus^ hut Burmannii i^ y^ 

 universal adoption, and is the earliest specific name j both were given by Beauvoiflj 

 0. africanus in 1807, O. Burmannii in 1812. 



DOUliTFUL SPECIES. 



O Fdubius, Kunth Eeris. Gram. \. 44; Enum. PL u 143. 



> 



12. AaUNDZNBXiZiA, Baddi. 



Annual or perennial erect grasses. Leaves narrow. Spikelets paniclcOf 

 not jointed on the pedicels, 1-2'fld. Glumes 4, membranous or sabcoriaceoa?f 

 I ovate acute or acuminate, rather shorter than II. 3 or 5-nerved; 1^ 

 lanceolate or ovate-lanceolate, acnminate or subaristate, 5-rarely 7-iiervea; 



