308 GraminetZ. [Arundinaria. 



Perennial ; stem widely creeping, diffusely often proli- 

 ferously branching, woody below, branches ascending, slender, 

 leafy; 1, 3-6 by ^-\ in., erect or spreading, linear, acuminate, 

 glaucous, glabrous or minutely scaberulous above, base 

 narrowed, sheaths glabrous, auricles rounded, ligule a very 

 narrow erose membrane ; spikes 2-6 in. long, erect, strict, 

 rhachis green, glabrous, margins of the oblong hollows mem- 

 branous, internodes ^ in. long, deeply striate, articulating 

 surfaces flat, oblique; glume I broadly ovate, acuminate, or 

 reduced to a narrow membrane, II twice as long as the inter- 

 node of the spike, subulate from an ovate-lanceolate base, 

 coriaceous, green, III ^-\ in. long, pale, ovate-lanceolate, 

 acuminate, margins incurved, palea nearly as long as the 

 glume; grain pale brown. 



Sea - shore, three miles south of Colombo (Ferguson). Spikelets 

 green. 



Australia, Malay and Pacific Islds. 



I 'have not found a second fig, glume in L. refiens, which occurs in 

 other species. The spike resembles that of a Rottboellia, from which 

 the genus differs, amongst other characters, in the spikelets not being 

 binate. 



77. ARVNDINARIA, Mich. 

 Erect or climbing shrubs; stems slender, nodes usually 

 prominent, internodes rather short, branches short, fascicled ; 

 stem-sheaths papery, straw-col'd., blade small, narrow, subu- 

 late; 1. usually small, articulate on the sheath, mostly net- 

 veined ; infl. variable, panicled or racemed, terminating the 

 leafing stems, or 1. and fl. branches intermixed ; spikelets 

 1 -many -fid., compressed, fl. all bisexual or the terminal 

 imperfect; glumes I and II unequal, empty, membranous, fig. 

 glumes longer, concave, obtuse acute mucronate or subaristate, 

 7-many-veined, palea 2-keeled, usually compressed ; lodicules 

 3, ovate obovate or lanceolate, ciliate; stam. 3, exserted or 

 not, anth. acute obtuse or tip bifid ; ov. globose or oblong, 

 smooth or hairy; grain oval or oblong, dorsally furrowed, 

 enclosed in the glume and palea. — Sp. about 50 ; 28 in Fl. 

 B. Ind. 



Spikelets panicled. 

 Panicles large, terminal, spikelets many. 



L. large, thick, margins cartilaginous . . 1. A. Walkeriana. 

 L. small, thin, margins membranous. 

 Spikelets 3-5-fid., fig. glumes, obtuse . . 2. A. Wightiana. 

 Spikelets 5-8-fld., fig. glumes acuminate . 3. A. floribunda. 

 Panicles short, spikelets few . . , . . 4. A. debilis. 

 Spikelets racemed 5. A. densifolia. 



