66 CLXXIII. GRA.MINE.E. (J. D. Hooker.) [Oplismenus. 



to be the most distinct, for undulatifolius, though constant over wide areas, is only a 

 form of compositus with the branches of the panicle represented by one or a few 

 sessile or subsessile spikelets. 



1. O. undulatifolius, Beauv. Agrost. 54; spikelets solitary or 

 clustered in a simple terminal spike. Kunth Revis. Gram. i. 44, Enum. 

 PI. i. 139, Suppl. 101 ; Parlat. PL Ital. i. 123 ; Boiss. Fl. Orient, v. 442 ; 

 Franch. fy Sav. Fl. Japon. ii. 654; T. Nees Gen. Fl. Germ. Monoc. i. n. 28 ; 

 Duthie Grass. N.W. Ind. 8. O. acuminatus, Nees ex Steud. Syn. Gram. 

 45. O. semulans, flaccidus & imbecillis, Roem. & Sch. Syst. ii. 487. O. 

 semulus, Kunth Revis. i. 44. 0. latifolius (error for undulatifolius) Serb. 

 Strach.'fy Winterb.; AHchis. Cat. Panjab PI. 161; Duthie 1. c. 8. O. 

 parvifolins, Kunth 45. O. setarius, Roem. 4* Sck. I. c. Orthopogon gonyr- 

 rhizus, Miq. FL Ind. Bat. iii. 443 ; Orth. hirtellus, semulus & flaccidus, Br. 

 Ptodr. 194. Orth. setarius, Spreng. Syst. Veg. 306 ; Griseb. Fl. Brit. W. 

 Ind. 545. Orth. undulatifolius, Spreng. Syst. i. 306; Reichb. FL Germ. 

 JExcurs. i. '23, la. Fl. Germ. i. t. 28. Orth. undulatus, Link Hort. Rey. 

 Berol. i. 203. Panicum barbifultum, Hochst. PI. HolienacJc. n. 1279, ex 

 Schlecht. in Linnsea, xxxi. 307. P. Burmanni, Sclirenk PI. Exsicc. Cent. 

 iii. n. 68; Balb. Misc. Bot. i. 8. P. gonyrrhiznm, Steud. 1. c. 44. P. 

 hirtellum, All. Fl. Pedem. ii. 240. P. imbecille, Trin. 1. c. t. 191 ; Wulf. in 

 Jacq. Collect, i. 263 ; Schrad. FL Germ. i. 242. P. setarium, Lamk. III. i. 

 170; Poir. Encycl. iv. 741; Pers.Syn.i. 82. P. undulatifolium, Arduin. 

 Sp. JjiJl4, t. 4 ; Gaud. Agrost. Helvet. i. 28 ; Trin. Sp. Gram. Ic. t. 192 ; 



Syn. Fl. Germ. Ed. ii. 892. ? Setaria hirtella, Scliult. Mant. ii. 276. 



TEMPEBATE HIMALAYA, alt. 6-9000 ft., from Kashmir to Sikkirn. KHASIA 

 HILLS, alt. 4-5000 ft., NILGHIEI HILLS. DISTEIB. Central and S. Europe, warm 

 regions generally. 



Stem 1-2 ft., usually very slender, simple or branched below. Leaves 1J-6 by 

 ^-1 in., from ovate to narrow lanceolate, finely acuminate, glabrous or sparsely 

 hairy ; sheaths glabrous or hirsute. Spike 2-5 in. ; rachis glabrous or pilose with 

 spreading hairs ; lower clusters of spikelets rarely produced into a very short spike. 

 Spikelets f in. (excl. awns), solitary with a second reduced to an awn, or clustered, 

 glabrous or nearly so. G-l. I 3-nerved, ciliate; awn -f in. or less; II usually 

 awned, 5-nerved ; III acute or shortly awned, 7-nerved, palea narrow or 0. Though 

 as observed under the genus, this grass is only a form of compositus, it keeps its 

 characters of the inflorescence throughout its distribution, and may hence be regarded 

 as distinct. The Nilghiri form (acuminatus, Nees) has very narrow leaves, 3-4 by 

 \-\ in. It is remarkable that no specimen of this species should exist in the 

 Wallichian Herbarium. 



2. O. compositus, Beauv. Agrost. 54; stem usually tall from a 

 decumbent base, leaves 2-7 in. lanceolate, spikes 4-10 1-6 in. long or more, 

 spikelets usually loosely imbricate, awns rather stout pale or' dark. Kunth 

 Enum. Pl.i. 141 ; Trin. Sp. Gram. Ic. t. 188, 189, 190; Benth. Fl. Austral. 

 vii. 491; Trim. Cat. Ceyl. PI. 105; Aitchis. Gat. Punjab. PI. 161 ; Duthie 

 Grass. N.W. Ind. SI. O. brasiliensis, Raddi Agrost. Bras. 40. O. brom- 

 oides, Baker in Journ. Linn. Soc. xxi. (1885) 452. 0. Burmanni, Thw. Enum. 

 358 ; Hochst. PI. Hohen. n. 368 (non Beauv.). O. decompositus, Nees in 

 Endl. Prodr. Fl. Norfolk. 19. O. elatior & loliaceus, Beauv. I. c. ; Kunth 

 I. c. 142. 0. hirtellus, Roem. & Sch. Syst. ii. 481. O. indicus, Willd. in 

 Act. Acad. Nat. Cur. iv. 224. O. Jacquini, Kunth Revis. Gram. i. 44, 45, 

 Enum. i. 140, 146. O. lanceolatns, Kunth II. cc. 45, 146 ; Wall. Cat. n. 8676 ; 

 Dalz. & Gibs. Boml). Fl. 292. 0. latifolius, HsBuke e,c Steud. Noin. 



