922 cxLTii. oramike.t;, 



1. Chameeraphis spinescens, Poir. Encyc. MetJiod. Suppl. v. 2 

 (1811) p. IbU. rorming floating inuch-branched masses with leafy 

 ascending stems 1-3 ft. long. Leaves 1-3 by y*^|- in., flat, acuminate, 

 narrowly linear-lanceolate, smooth or scabrid, base narrowed ; sheaths 

 long, loose, with naked margins ; ligule a ridge of minute hairs. Panicle 

 2-4 in. long, shortly pedunculate, more or less contracted; rhachis 

 angular, sulcate ; branches filiform, angular, grooved, flexuous, few- or 

 many-flowered, the lower 1-2 in. long, the awn-hke tips \-^ in. long. 

 Spikelets (including their awn) |— ^ in. long, subsessile. Glumes 4 ; 

 lower invol. -glume scarcely -^ in. long, orbicular or subquadrate, usually 

 rounded at the apex, hyaline ; upper invol.-glume -l— l in. long (including 

 the awn), lanceolate, setosely scabrid on the sides, membranous, 9-11- 

 nerved, with a long scabrid awn which is sometimes as long as the 

 body of the glume ; lower floral glume shorter than the upper invol.- 

 glume, finely acuminate or awned, 7-nerved, male, paleate, membranous, 

 the palea hyaline, smaller than the glume, linear-oblong, subacute ; 

 upper floral glume about -^-r; in. long, ovate-lanceolate, acute, female, 

 nerveless, the palea hyaline. Fl. B. I. v. 7, p. 62 ; Trim. Fl. Ceyl. v. 5, 

 p. 165 ; Woodr. in Journ. Bomb. Nat. v. 13 (1901) p. 434 ; Prain, Beng. 

 PI. p. 1171. — Flowers : Sept. 



KoKKAN : Wangni, Woodrow. — Distrib. India (Eajputana, Bengal, W. Peninsula) ; 

 Ceylon, China, Malaya, Australia. 



I have seen no specimens from the Bombay Presidency ; there are none from that 

 Presidency in Herb. Kew. 



6. ISACHNE, Br, 



Perennial grasses. Leaves ovate or linear-lanceolate, Spikelets 

 small or minute, loosely paniculate, not or obscurely articulate with the 

 pedicel, subglobose or obovoid, 1-2-flowered. Grlumes 4, the 2 lower 

 often separately deciduous, thinly coriaceous or membranous, strongly 

 nerved; invol.-glumes subequal, convex, empty; the 2 floral glumes 

 both paleate, equal and convex, or the lower larger and flatter ; lower 

 floral glume male or neuter; upper floral glume jointed and often 

 stipitate on the very short rachilla, hemispheric, female or her- 

 maphrodite. Lodicules most minute. Stamens usually 3 (rarely 4 or 6). 

 Styles 2, free ; stigmas short, plumose, exserted at the top of the 

 spikelet. Grain free within the hardened glume and palea. — Distiub. 

 Species about 25, tropical and subtropical. 



Invol.-glumes longer than the floral glumoH 1. /. Lishoa. 



Invol.-glumes about equalling the floral glumes. 



Floral glumes equal and similar, both hemispheric and 



coriaceous 2. /. clegans. 



Floral glumes usually unequal, the lower floral glume thin, flat, 

 often longer than the upper. 



Stem reaching 18 in. long ; panicle rather largo, ovoid or 



pyramidal; spikelets y'j in. long ; leaves 1-2^ in. long ... 3. I. aiisfrnlis. 

 Stem rarely reaching 10 in. long ; panicle small, kix-flowcred ; 



spikelets .^o-^\ i"- lo"g ; leaves 1-1^ in. long 4. /. miUacea. 



1 . Isachne Lisboae, JIoolc. f. Fl. B. I. v. 7 (1890) p. 22. A low 

 plant in. high ; stems creeping, with long wiry roots, then ascending, 

 i-ather stout, leafy. Leaves 1-2 by ^ in., recurved, thin, oblong-huiceo- 

 hite. acute, ciliate on the margins w ith long slender hairs, closely and 



