Stenotaphrum.'] CLXXIII. GEAMINE^B. (J. D. Hooker.) 91 



B. dimidiata, Thunb. Prodr. Fl. Cap. 23. E. paleacea, Steud. ex Doell in 

 Mart. Fl. Bras. ii. II. 301 . E. tripsacoides, Lamk. Illustr. i. 205, t. 48, f . 1. 

 Panicum dimidiatum, Linn. Syst. Ed. xiii. 90; Willd. Sp. PI. i. 339; 

 Retz. Obs. vi. ; Eoxb. Fl. Ind. i. 287. P. poaeforme, Bojer Hort. Maurit. 

 365. Diastemanthe platystachye, Steud. I. c. 360. Ischaemum secandatum, 

 Walt. Fl. Carol. 249. Stenotaphrum, Wall. Cat. 8673. 



PLAINS throughout INDIA. DISTEIB. Tropics generally. 



Stem stout, creeping below j branches 2 in. to 2 ft. high. Leaves 3-6 in. by J 

 in. broad or less ; sheath broad, flat ; ligule a ring of fine hairs. Spike erect, 2-4 

 hy | i in., not or obscurely jointed ; branches when present f in. by in., erect. 

 Spikelets % in. long ; gl. I about II, orbicular ; II thin, ovate, acuminate, 7-nerved ; 



III lanceolate, acuminate, margins thickened obscurely incurved. Very variable 

 in the number and arrangement of the spikelets. 



2. S. Helferi, Munro in Cat. PL Griff. Falc., $c. (1865) ined. ; gl. I 

 half as long as III ovate-oblong strongly 3-5-nerved. Panicum dimi- 

 diatum, Heyne in Serb. Rottl. 



TENASSERIM, Heifer. MALAY PENINSULA j Plus river, Wray ; Quedah, King's 

 Collector ; " Hengeiturei, Feb. 12th, 1796," Heyne ? in Herb. Rottler DISTEIB. 

 Tonkin. 



Stem 1-2 ft., as thick as a crow-quill or thicker, base decumbent geniculate. 

 Leaves 6-10 by -5 j in., strap-shaped, upper acuminate, lower obtuse apiculate ; 

 sheath broad, flat ; ligule a ring of. short hairs. Rachis of spikes 3-6 by i-f in., 

 straight or flexuous, not jointed ; spikes - in. ; spikelets 3-6, imbricate, -^ in. 

 long, ovate, acute j gl. I obtuse j II lanceolate, thin, 7-nerved; III = II, 5-nerved, 

 paleate, male ; IV chartaceous, dorsally flattened ovate, beaked, smooth. Heyne's 

 specimen is probably from the Malay Peninsula, from whence he received plants ; it 

 is accompanied by one of 8. glabrum. 



17. THUAREA, Pert. 



A small much -branched prostrate leafy littoral grass. Leaves short, 

 flat. Spike terminal, included in a leaf-sheath ; rachis flat, herbaceous, 

 base at length accrescent and enveloping the spike. Spikelets uniseriate, 

 jointed on one face of the rachis, 4-6 upper male, 2-fld. ; 1-2 lower fern, or 

 bisexual. Glumes 3-4; I small, hyaline, or in males 0; II empty; III and 



IV subequal, triandrous in the males ; IV of the lower spikelets rigid, thin, 

 bisexual, paleate. Anthers linear. Styles distinct. Grain free within the 



flume, but with the rest of the spikelets closely enveloped by the thick 

 ardened base of the rachis, which forms an obconic caducous nut with a 

 free deflexed and incurved beak. 



T. sarmentosa, Pers. Syn. i. 110; Kunth Revis. Gram. i. 247, 

 t. 35, Enum. Pl.i. 174, Suppl. 128; Beauv. Agrost. 127, t. 22, f. 9; Steud. 

 Syn. Gram. 112; Thw. Enum. PI. Zeyl. 363; Trim. Gat. PI. Ceyl. 106; 

 Benth. Fl. Hongk. 415, Fl. Austral, vii. 502. T. latifolia and media, Br. 

 Prodr. 197 ; Kunth Enum. I. c. 173, 174. T. involuta, Br. 1. c. ; Miq. FL Ind. 

 Bat. iii. 473. Ornithocephalochloa arenicola, Kurz in Trim. Journ. Bot. 

 iv. (1875) 332, t. 171. Ischaemum involutum, Forst. Prodr. 73. 



CEYLON, the LACCADIVE and NICOBAB ISLDS. DISTEIB. Malay Islds., Mada- 

 gascar, Australia, Polynesia. 



Leaves 1-2 in., linear-oblong, acute, glabrous or silky ; sheaths broad, silky ; 

 ligule of hairs. Splices %-I in. Spikelets | in. Glumes obtuse, ciliate, I minute ; 

 II ovate-oblong, 5-nerved j III much broader, 5-nerved ; IV oblong-lanceolate, tip 



