Dimeria.] clxxiii. geamine^!. (J. D. Hooker.) 105 



III oblotig. D. ornitliopoda, Thw. Enum. 369. Ptervgrostachyum Leh- 

 manui, Nees ex Bteud. Nom. Ed. II. ii. 412, 8yn. Gram. 413. 



Cetlon, Macrae, Walker, Thwaites. 



Annual, branched, 8-10 in. high. Leaves erect, flat, acuminate. 



Var. a ; glabrous, rachis of spike ciliate, spikelets awned. (C.P. 952.) 



Var. /3 ; rachia of spike scaberulous, spikelets not awned. (C.P. 955.) 



8. D. pubescens, Saci:. Monogr. Androp. 83 ; spikes stout spreading, 

 margins of broad straight rachis ciliate, spikelets J- in. sessile silky, gl. I 

 and II shortly acnminate, I narrowly linear with membranons margins g 

 longer than III. D. ornithopoda, var. y, Thw. Enum. PI. Zeyl. 369. 



CEiriON, Gardner; Paadoon Corle, Thwaites (O.P. 956). 



Perennial, branched from the base, glabrous to villously hairy. Racemes 2-2^ in., 

 often solitary and inclined ; rachia flat, -^ in. broad or less. Spikelets densely im- 

 bricate ; gl. I and II silky all over ; awn twice as long as the spikelet or longer. 



9. D. fyisce&cen&,Trin.inMem.Acad.Fetersl.Ser.Yl.i\.{im')ZZh; 

 spikes stout spreading, rachis undulate margins smooth or scaberulous, 

 spikelets j-J in. sessile, callus minute or 0, gl. I and II acute or 

 acuminate, I narrowly linear much longer than III, margins of II 

 broadly membranous. Hack. Monogr. Androp. 84 ; Trim. Cat. Ceyl. PL 

 107; TAsboain Journ. Bomb. Nat. Hist. Soc.vi. (1891) 189. D. ornitho- 

 poda, var. (3, Thw. Unum. PI. Zeyl. 369. — Dimeria, Wall. Oat. n. 884] . 



Nepai, Wallich. Khasia Hills, alt. 4-5000 ft., Griffith, &c. Tbnasseeim, 

 Selfer. The Concan, lAsboa. Ceylon, G-ardner, Thwaites (C.P. 3256). 



Perennial, 2-3 ft. high, stout, simple or branched. Leaves glabrous or hairy. 

 Spikes 2-4 in. j rachis compressed trigonous. Spikelets reddish-brown ; awn twice as 

 long as the gls. — The Tenasserim specimens are small and in a poor state. 



10. D. alata, Sooh. f. ; spikes 2-3 rather stoat, spikelets y^ in. sessile 

 glabrous callus naked, gl. I scaberulous, II dimidiate-ovate keel broadly 

 winged, III nearly as long as II, awn 0. D. ornithopoda 8 mutica, Thw. 

 {in part). 



Cetlon, Thwaites (O.P. 955 of 1864). 



Annual. Stems 6-18 in., tufted, slender, erect. Leaves. 6-12 by i-i in., erect, 

 strict, narrowed to the base, and sheaths hirsute with long spreading hairs. Spilces 

 3 in., strict, spreading ; rachis ^ in., stout, straight, margins scaberulous. 61. I 

 divaricate j II appressed to the racbls, broadly hyaline ; wing opaque, strongly 

 ciliate; III oblong, ciliate, 1 - nerved ; IV obovate-oblong, ciliate. — The small 

 glabrous spikelets and broadly winged gl. II distinguish this species from D. 

 fuscescens. 



*** Spikes 4-10 (rarely 3) digitate or fascicled. 



11. D. gracilis, Nees esc Steud. 8yn. Oram. 413 ; leaves not con- 

 tracted above the sheath, spikes 3-10 long slender flexnous quite glabrous, 

 rachis filiform subtrigonous, spikelets \-\ in., pedicels long slender 

 glabrous, callus bearded. Hack. Monogr. Androp. 88 ; Lisboa in Journ. 

 Bomb. Nat. Hist. Soo. vi. (1891) 190. D. laxiuscula, Thw. ex Trim, in 

 Journ. Bat. xxiii. (1885), 272, Trim. Cat. Ceyl. PI. 107. 



The CoNCAN, Law, on the Ghats, Lisboa. Cetlon, Macrae, Thwaites, &c. 

 (C.P. 3863). 



Perennial, 1-2 ft. high, stout or slender. SpiJces lJ-3 in., pale red-brown ; gl. I 

 and II, lanceolate, ciliate; I scabrld above the middle or all over; II with narrowly 

 membranous margins ; awn twice as long as the spikelet. 



12. D. leptorhachis, Hacjc. Monogr. Androp. 89 ; leaves contracted 



