Materials for a Flora of the Malayan Peninsula. 157 



25. ISCIIAEMUM, L. 



Annual or perennial gras^ses. Spikes solitary, in pairs, or digitate 

 or fascicled, internodes thick trigonous ventrally hollowed, Spikelets 

 in pairs, one sessile, one pedicelled, 1-^ flowered pedicelled spikelet 

 often different from the sessile one. Sessile spikelet. Glumes 4. I 

 chartaeeous or stiffly coriaceous awnless OA'oid oblong or lanceolate, 

 sides incurved, more or less distinctly winged on each side, II as 

 long, lanceolate, sometimes awned, III nearly as long, membranous 

 acute, paleate. Stamens 3 or not. Palea narrower lanceolate 2 

 veined, centre stiff with broad inflexed flaps, IV deeply 2 cleft awned, 

 base of awn twisted brown, smooth. Styles and stigma short. Pedi- 

 celled spikelet similar or not. (ilume I semiovate flat broadly winged, 

 lY oblong obtuse or very' shortly bifid awnless. 



Species -iO. Tropical and subtropical Asia, S. Europe, Austra- 

 lasia, Africa, rare in South America. 



§ EuiscHAEMUM. Spikcs 2, or more. 

 'Glume I of sessile spikelet not strongly 

 nerved. 



Spikelets glabi'ous. Tall stout erect grasses 

 nodes glabrous. 

 Glume I oblong hard, trans\ersely wrin- 

 kled at base. 

 Spikes 3 inches long slender 

 Spikes -l-T inches long stout 



Glume I narrowly elliptic oblong smooth 

 Spikelets glabrous. 



Slender, creeping or sarmentose grass. 

 Spikes ^-2 inches long . . . . ■ 



Spikes silkily hairy. 

 Stem I to 6 feet tall 

 Slender grasses ascending nodes ciliate, 

 glumes thin. 

 Keel of glume II winged above 

 Keel of glume II not winged 



§ (Sehima). Spike solitary. Glume 

 I strongly nerved . . . . . . . . 8. /. Beecarii. 



1. I. RUGOSUM, Salisb. Ic. Strip. Ear. I. t. 1. Annual, stems 

 rather slender ciliate at the nodes geniculate, about 2 feet tall. Leaves 

 linear acuminate with scattered hairs, 9 inches long I inch Avide, 

 narrowed at the base. Spikes 2 appressed, 3 inches long stout. 

 Spikelets green or acIIow I inch long erect appressed to the rachis, 



