144 CLXXIII. GBAMINE.E. (J. D. Hooker.) [Arthraxon. 



Seng. xxi. (1853) 182: Dutkie Grass. N.W. Ind. 16. A. lanceolatus, 

 Roxl). Fl. Ind. i. 257 ; Kunth Enum. PL i. 498. A. prionodes, Maxim, in 

 Bull. Soc. Nat. Mosc. liv. (1879) 68 (non Steud.). A. serrulatus, Link 

 Enum. Hort. Berol. i. 241 ; A. Rich I. c. Thelepogon elegans, Both Nov. 

 Sp. 62 (char, f ah], ex Roem. $ Sch. Syst. ii. 788; Wight Cat. n. 1684. 

 Batratherum, Wall. Cat. n. 8830. 



WESTERN HIMALAYA, alt. 5-8000 ft. from Kashmir to Nepal. Plains of the 

 PAN JAB and RAJPOOTANA. BEHAE, on Parusnath, alt. 4000 ft., Clarke. CORO- 

 MANDEL, Roxburgh. SIND, Stocks. DISTRIB. Abyssinia, Tonkin, China. 



A tall much-branched suberect or subscandent grass 1-3 ft. high with rigid 

 stems thicker than a crow-quill. Leaves very variable, from broadly ovate and 

 -3 in. by -l-j in., to narrowly lanceolate and 1-4 by i-J in., caudate-acuminate, 

 flaccid or rigid, glabrous or hairy, margins serrulate or ciliate with stiff hairs, 

 nerves obscure ; ligule rounded. Spikes few or many, -2 in., rachis sparsely hairy, 

 joints about half as long as the spikelet, margins cilr-ite. Spikelets *-% in., very 

 narrow ; gl. I acute, tip hyaline 5-7-nerved, dorsally smooth or muriculate 9 II lan- 

 ceolate, 3-nerved; JII shorter, linear-oblong, acute ; IV hyaline, awu about 1 in. 

 long. Pedicelled spikelets linear-lanceolate, keels hispidulous; anthers perfect. 

 Hackel has 5 varieties and subvarieties of this species, but I fail to limit them after 

 studying copious materials. 



2. A. rudis, Hochst. in Flora, xxxix. (1856) 188 ; spikes few, spikelets 

 ovoid, gl. I ovate acute convex 7-nerved, nerves above armed with a few 

 irregular spinescent tubercles, margins hyaline narrowly incurved IV 

 paleate. Hack. Monogr. Androp. 348. Andropogon rudis, Steud. Syr*. 

 Gram. 383; Thwaites Enum. PL Zeyl. 368; Trim. Cat. Ceyl. PI. 107. 

 A. castratus, Gh-iff. Notul. iii. 89. Batratherum rude, Nees ex Steud. I. c. 

 Arthraxon, Wall. Cat. n. 8834, 8837. 



UPPER ASSAM ; Suddiya, Griffith. SILHET, de Silva. CEYLON ; in the Central 

 Province, Thwaites (C.P. 866). 



Stem 1-2 ft., erect from a geniculate branched rooting (blood-red, Griff.) base, 

 rigid, as thick as a crow-quill or less. Leaves 2-4 in., lanceolate, acuminate, 

 glabrous or sparsely hairy, margins strongly ciliate. Peduncle long, slender, naked. 

 Spikes 1, 2, or few, ^-1 in., peduncled ; peduncle and rachis rather stout smooth, 

 with sometimes an empty glume. Spikelets - in. (red-brown, Griff.), coriaceous ; 

 gl. I 9-nerved ; II 3-nerved, acute ; III hyaline, oblong, ciliate, 1-nerved; IV lan- 

 ceolate, ciliate, awn inserted below the middle, about twice as long as gl: II, palea 

 linear-oblong, ciliate. The only species in which I have seen a palea to gl. IV. 



3. A. breviarlstatus, Hack. Monogr. Androp. 350; spikes many, 

 spikelets ovate-lanceolate, gl. I oblong-lanceolate subacute convex nerves 

 7 pair tubercled nearly to the base, II acute keel ciliate margins with 

 deflexed cilia, awn short. Batratherum khasianum, Munro mss. B. 

 echinatum, Herb. Ind. Or. Hf. & T. (in part). 



KHASIA HILLS, alt. 5000 ft., Griffith, &c. 



Stems 2-4 ft., geniculately branched below, about as thick as a dove's quill. 

 Leaves 1-2J in., ovate or ovate-lanceolate, finely acuminate and sheaths glabrous or 

 hairy. Peduncle long, usually naked, slender. Spikes 10-20 ; 1-3 in. ; rachis and 

 pedicels nearly glabrous. Spikelets g -- in., purplish ; gl. I variable in the number 

 and size of tubercles on the nerves ; IV not much shorter than II, awn subbasal, 

 shortly exserted. Anthers very large (sometimes 2 only ?) Resembles a very large 

 A. ciliaris. 



4. A. submuticus, HocTist. in Flora, xxxix. (1856) 188 ; spikes few 

 short pale, spikelets all sessile very small linear-oblong terete, gl. I 



