106 CLXXIII. GKAMINE/E. (J. D. Hooker.) [Dimeria. 



above the sheath, spikes slender, rachis filiform ciliolate at the nodes, 

 spikelets -| in., pedicels very short thickened, callus bearded. D. pilo- 

 sissima, Thw. Enum. PL Zeijl. 369; Trim. Cat. Ceyl. PI. 107 (not of 

 Tnn.). 



TENASSERIM, Heifer, Griffith (Kew distrib. 6799). CEYLON; on Adam's Peak 

 (C.P. 24, 3261). 



Perennial, stout. Leaves glabrous or villous. Racemes 2-6 in. ; rachis straight 

 or flexuous ; internodes i-j in. in Tenasserira specimens, much shorter in Ceylon 

 ones. Spikelets pale or dark, red-brown ; gl. I and II acuminate, ciliate in Ce'ylon, 

 scaberulous in Tenasserim ; II with narrowly membranous margins. 



31. XMPERATA, Cyrill. 



Perennial, erect, often tall grasses. Spikelets 1-2-fld., in spiciform or 

 thyrsiform silvery-silky panicles, binate, both pedicelled, upper fi. perfect, 

 lower imperfect or 0. Glumes 4, membranous, awnless ; I and II lanceolate, 

 hairy; III much smaller, hyaline, glabrous; IV still smaller, hyaline, 

 glabrous ; palea hyaline, glabrous. Stamens 1-2 ; anthers large, linear. 

 Styles connate at the base, stigmas linear. Grain small, oblong, free. 

 Species 5, tropical, chiefly American ; 2 Asiatic, one also European. 



1. I. arundinacea, Cyrill. PI. Rar. Neap. Fasc. ii. 26, t. 11 ; panicle 

 very narrow spiciform, branches short appressed, gl. I 5-9-nerved, stamens 

 2. Br. Prodr. 204 ; Kunth Enum. PL i. 477 ; Hack. Monogr. Androp. 92 ; 

 Steud. Syn. Gram. 405 ; Reichb. Ic. Fl. Germ. t. 55 ; Soiss. Fl Orient, v. 

 452 ; Thw. Enum. PL Zeyl. 369 ; Trim. Cat. Ceyl. PL 106 ; .Duthie Grass. 

 N.W. Ind. 14, Indig. Fodd. Grass, t. 15, Fodd. Grass. N. Ind. ^2; Aitchis. 

 Cat. Punjab. PL 173. I. Allang, Jungh. in Tijdschr. Nat. Gesch. vii. 295 ; 

 8 feud. 1. c. 405 (Alang)r*T;ondensajta, Steud. L c. 431. I^Cjlmd.ricji, 

 Beauv. Agrost. 165. I. filifolia"," Necs ex Steud. L c. I. Koenigii, Beauv. 

 Agrost. 165; Wall. Cat. n. 8850. I. pedicellata, Steud. in Flora, xxix. 

 (1846) 22, Syn. Gram. I.e. I. Sieberi, Opiz. Natural, x. (1825) 190. I. 

 Sisca, Beauv. ex Steud. Nom. Ed. II. i. 805. I. Thunbergii, Nees ex Wall. 

 Cat. n. 8851. Saccharum cylindricum, L'amk. Encycl. i. 594 ; Roxb. Fl. 

 Ind. i. 234; Grah. Cat. Bomb. PL 239 ; Griff*. Notul. iii. 80. S. diandrum, 

 Koen. ex Retz. Obs. v. 16. S. europaeum & S. indum, Pers. Syn. i. 103. 

 S. Koenigii, Retz. Obs. v. 16. S. spicatum, Burm. ex Kunth I. c. S. lagu- 

 roides, Pourr. in Mem. Acad. Toul. iii. (1788) 326. S. Kavennae,' JBieb. FL 

 Taur. Cauc. iii. 51. Lagurus cylindricas, Linn. Syst. Nat. Ed. x. 878. 

 Calamagrostis Lagurus, Koel. Dtscr. Gram. 112 ; Most Gram. Austr. iv. 

 t. 40. 



Hotter parts of INDIA, from the Panjab southward and eastward to Malacca and 

 Cej'lon. DISTRIB. All warm countries. 



Rootstock creeping. Stem 1-3 ft., solid, nodes glabrous or bearded. Leaves 

 erect, often exceeding the stem. Panicle 3-8 in., silvery with dark anthers and 

 stigmas. Spikelets -i in., callus-hairs about twice as long as the gls. ; gl. I rather 

 thickened towards the base, dorsally hairy, tip obtuse ; II as long as I, 3-7-nerved ; 

 III = i-i II, oblong, irregularly toothed, nerveless; IV ovate, acute, toothed, 

 faintly 1-nerved or nerveless; palea about half as long as the gl., quadrate, retuse or 

 toothed, nerveless, glabrous. Hackel distinguishes the Indian form as var. Koenigii, 

 having villous nodes and broader lees rigid leaves, but some of the Indian specimens 

 appear to me quite like the Western. 



Var. latifolia ; stem 3-4 ft. very robust, nodes glabrous, leaves long -f in. 

 broad, palea of gl. IV with long-ciliate lobes. Tropical Himalaya, from Kuinaon to 

 Assam. 



