Panicum.] CLXXIII. GBAMINE^E. (J. D. Hooker.) 33 



acuminate, III paleate male, IV orbicular-oblong rugulose shortly awned . 

 Panicum, Wall. Cat. n. 8723. 



BURMA ; Petroleum wells of the Irawaddi, Wallicli. 



Stem 18-24 iu., robust and foliage of Crus-galli, nodes pubescent, Leaves 3-5 

 in., finely acuminate, ciliate towards the base j sheaths sparsely hairy ; ligule 0. 

 Panicle 5 in., rachis flattened and angular, much narrower than the spikelets. 

 Spikelets erect, imbricate, pale, sparsely silkily pubescent ; gls. membranous, 1=^ 

 III, broadly ovate, obtuse, 3-nerved ; II ovate, finely beaked, 5-uerved, hirsute; 

 III very broadly obovate, cuspidately acuminate, the inflexed margins densely ciliate 

 with long erect hairs ; awn of IV as long as itself, strict, scabrid. A very remarkable 

 grass, with the habit of P. Crus-galli, but with the rugulose awned gl. IV of 

 P. javanicum, and hence intermediate between the sections Echinochloa and 

 JSrachiaria. 



Sect. III. BEACHIAKIA. (See p. 27.) 

 See P. turgidum in Sect. EFFUSE. 

 * Gl. I nearly as long as III ; IV shortly awned. 



8." P. ambiguum, Trin. Gen. Panic. 155 ; leaves narrow hairy base 

 rounded, spikes few suberect, spikelets ^fc in., glabrous, gl. I ovate acute 

 5-nerved, II ovate-lanceolate acuminate 7-nerved, III epaleate, IV oblong 

 minutely rugulose. Steud. Syn. Gram. 61. P. infidum, Trim. Oat. Ceyl. PI. 

 104 (non Trin.). P. javanicum, Thw. Enum. PL Zeyl. 358. P. sanguinale, 

 Burm. Fl. 2nd. t. 10, f. 2 (non descr.). Urochloa paspaloides, Presl Rel. 

 Hsenk. i. 318 (fid. Trin.) ; Kunth Enum. PI. i. 75. 



BURMA ; Mergui, Griffith. CEYLON, Gardner, Thwaites (CP. n. 858, 3244).- 

 DISTEIB. Mascarene, Malay and Pacific Islds. 



Annual. Stems 1-2 ft., slender, much branched from the base; nodes glabrous 

 or puberulous. Leaves 3 -6 by ^--3- in., acuminate ; sheaths glabrous or margins 

 ciliate ; ligule a tuft of hairs. Spikes 3-4, 1-2 in. ; rachis slender, triquetrous, 

 glabrous or with a few hairs at the nodes, tipikelets 2-seriate, alternate, sub- 

 erect; palea of IV with green nerves; awn of IV concealed by II and III. The 

 subequal gls. I and III will distinguish this from all other species of the Brachiaria 

 section. P. ambiguum, Fig. & de Notar. is a very different plant. Presl describes 

 two varieties in the Philippines ; a lower gl. hardly half as long as the others ; 

 j3 glumes subaequiloug. I have seen no Indian or other specimens answering to o. 



** Gl. I much shorter than III ; IV often abruptly apiculate. 

 Spikelets aVrV in. 



9. P. prostratum, LamJc. Illustr. i. 17], Encycl. iv. 745; leaves 

 short, base broad amplexicaul and sheaths ciliate, spikes usually crowded 

 suberect, rachis trigonous, pedicels with long cilia, spikelets -aVrV in- 

 crowded subsessile 2-3-seriate ellipsoid glabrous, gl. I very short semi- 

 lunar, II ovate acute 5-7-nerved, III 5-nerved paleate, IV obovate apicu- 

 late minutely rugulose. Trin. Diss. ii. 150, Panic. Gen. 158, Sp. Gram. Ic. 

 t. 184, 185 ; Kuntli Enum. PI. i. 89, Suppl. 68 ; Steud. Syn. Gram. 62 ; 

 Thw. Enum. PL Zeyl. 359 : Trim. Cat. Ceyl. PL 105; Aitchis. Gat. Pan jab. 

 PL 160; Duthie Grass. N.W. Ind. 6, Indig. Fodd. Grass. i.4<5,Fodd. Grass. 

 N. Ind. 11 ; Senth. Fl. Austral, vii. 476 ; Grisel. Fl. Brit. W. Ind. 540. 

 P. barbatum, Lamk. Illustr. I.e. P. Cifispitosum, Sw. FL Ind. Occ. i. 146. 

 P. crispum, Llanos Fragment. 42. P. birsutum, Ileyne ex Wall. Cat. n. 

 8734 B. P. marginatum, Vahl ex Serb. Rvttl. et ex Wall. Cat. n, 8732 



VOL. VII. P 



