168 Materials for a Flora of the Malayan Peninsula. 



thin, IV an awn 3 inches long, base wliite, swollen a little above and 

 brown hispid. Pedicel led spikelets pale, much longer than the sessile 

 one. Pedicel rather shoi't ghibrous. (.Jhnne 1 lanceolate covered witti 

 long hairs with bulbous bases edges winged, J I oblong lanceolate 

 nari'ower acuminate, III oblong tip rounded, lY obovate oblong 

 ciliate. Kunth. Enum. PI. I. 486. Hack. Monogr. 585. Hook. fil. 

 Fl. Brit. Ind. YH. 199. ^frim. Fl. Ceyl. Y. 239. Heteropogon con- 

 tortus, Beauv. Poem, and Scliult. Syst. II. 836. 



Pahang: Pekan (Ridley 1590); Malacca: Pulau Besar (Ridley 

 60) ; Penang: Waterfall Gardens and Poad to Batu Feringhi (Curtis 

 1906, 1912). Distrib. All warm countries. Not common here, it 

 inhabits sandy open places. 



A. citratus, the Lemon grass, " Sereh Makan " and A. nardm^, L. 

 the eitronela grass " Sereh Wangi " are often cultivated. There are 

 also plantations of it cultivated for its oil in many parts of the 

 peninsula. A. sqiiorrosvs, L. The cuscus grass, or Yetiver and A. 

 citratus, rarely cultivated. 



32. Antitistiria, L. 



Tall or short perennial or annual grasses. Leaves long and 

 narrow. Spikes many crowded in fascicles, enclosed in spallies. 

 Spikelets 6-11, the lowest ones awnless male or barren forming an 

 involucre, surrounding one or more sessile bisexual or female spike- 

 lets usually awned, linear oblong. Glume I lanceolate acuminate 

 coriaceous. 11 shorter or as long keeled. Ill oblong hyaline. IV 

 short with a long awn. Palea absent. Stamens 3. Styles free. 

 Stigmas long grain oblong. 



Species 10. Tropics of the Old World. 



Annual. 



Spikes in fan-shaped nodding heads . . . . 1. ^. arguens. 



Perennial 10 or more feet long. 



I'anicle very large . . . . . . . . 2. A. gigantea. 



1. A. AKGLKX.s, Wilkl. Sp. PI. IV. 90L Annual 6 inches to 3 

 feet, slender or stout. Leaves 6 to 16 iiulies long 1-] inch wide 

 glabrous scabrid. Spikes in fan-shaped nodding heads, outer spathes 

 nai'row acuminate 3 to 5 inches long bhiish gi'een or dark red hairy. 

 Inner spathes much shorter, ^ to 1 inch long. Spikelets involucral 

 2-1 about an inch long green, (ilume nai'row lanceohUe acuminate 

 hairy, II shorter. I\' short oblong bilobed ciliate with slender pale 

 awn bisexual spikelets solitary cylindric with a brown bearded callus, 

 Glume I convolwlc truiuale pide i)i()\vn, II similar, 1 \' a straight 

 brown awn scabrid 3 inches long stout. Kunth. Knum. PI. I. 182. 

 Hook. lil. Fl. Brit. Ind. II. 211. A. frondosa, Br. Prodr. 200. A. 



