(2 



Arundinella.'] CLXXIII. GRAMINB^:. (J. D. Hooker.) 69 



III equalling I or rather longer, oblong, subacute or narrowly truncate 5- 

 or 7-nerved, paleate, triandrous or neuter ; IV much the smallest, bisexual, 

 articulate at the base and deciduous, membranous and oblong in flower, 

 lanceolate subcoriaceous and scaberulous when mature, andawnless or with 

 one terminal subgeniculate awn more or less twisted at the base, and with 

 sometimes 2 lateral shorter capillary awns ; base usually bearded. Anthers 

 long. Styles 2, free or connate below; stigmas long. Grain free within 

 gl. IV. Species about 30, tropical. 



A very well marked genus, referred by Baillon (Bull. Soc. Linn. Paris (1893) 

 1023, 1083, 1093) to Panicum, from which it differs in the inarticulate spikelets 

 with the small thin gl. IV articulate at the base, as also in gl. IV being awned in 

 many species and bearded at the base. The species are most difficult of determina- 

 tion, the Peninsular especially, which have not been so collected as to provide suffi- 

 cient material for satisfactory study. I greatly doubt the value of the characters 

 afforded by the awns. 



* Gl. IV with 3 awns, the lateral short, capillary. (MIUOSACCHABUM, 

 Nees.) 



1. A. avcnacea, Munro ex Thw. Enum. PL Zeyl. 362 ; annual, 

 leaves short, panicle $ 1 in. ovoid compact, spikelets \ in. subsessile, 

 gl. I and II awned, III awned acuminate, IV hispid or bearded, median 

 awn flattened and strongly twisted at the base. Lisloa in Journ. Bomb. 

 Nat. Hist. Soc. v. (1891) 345 ; Trim. Cat. Geyl. PI. 106. A. Campbelliana, 

 Lisboa I.e. 346. Avena malabarica, Heyne ex Herb. Rottl. Arundinella? 

 Wall. Gat. 8670. Aira, No. 3, Griff. Notul. iii. 55, Ic. PI. Asiat. 1. 146, f. 



KHASTA HILLS, in wet places, alt. 3-4000 ft. Griffith, &c. DECCAN PENIN- 

 SULA, from the Concan southward. BUEMA; Pegu, Kurz ; Moulmein, Griffith. 

 CEYLON, in swamps, at Eatnapoora, Thwaites. 



A weak straggling slender grass. Leaves 1-2 in., ovate-lanceolate, acute, 

 glabrous or pilose, base amplexicaul and subpectinately ciliate ; sheaths slender ; 

 ligule membranous, ciliate. Panicle pale green, branches short glabrous or hairy. 

 Glumes I and II glabrous hairy or with tubercled-based bristles; I 3-5-nerved ; 

 II longer, 5-nerved; III acute or acuminate, 5-nerved, paleate, male or neuter; 



IV linear-oblong, more or less hispidly pilose or with lateral beards, base with long 

 hairs ; lateral awns triangular at the base, median about twice as long as the 

 spikelet, geniculate above the twisted portion. 



2. A. tuberculata, Munro ex Lisboa in Journ. JBomb. Nat. Hist. 

 Soc. v. (1891) 344 ; annual, erect, hispid with long white tubercled-based 

 hairs, panicle lax, spikelets % in. shortly pedicelled r gl, I 3-nerved shortly 

 awned, II nearly twice as long 5-nerved narrowed to a long beak, III male 

 obtuse, IV glabrous, median awn slender twisted or not below. 



The CONCAN ; Poona, Stocks, &c. CENTEAL INDIA, King. 



Stem 12-18 in., sheaths leaves and panicle clothed with white spreading stiff 

 hairs. Leaves 1-3 in., linear-lanceolate, base rounded ; ligule a ridge of hairs. 

 Panicle 3-6 in., narrowly oblong ; branches -1 in., suberect, scaberulous. Spike- 

 lets ovoid, single or geminate, beak of gl. II as long as the rest of the gl. ; III as 

 long as I, narrow, glabrous, 5-nerved ; IV lanceolate, scabrid when ripe, base pilose, 

 median awn about twice as long as the spikelet, lateral acicular. 



3. A. mesophylla, Nees ex Steud. Syn. Gram. 115 ; Nees fy Am. ex 



Wight Gat. n. 2347 ; annual, erect, pubescent or hirsute, leaves narrow, 

 branches of compressed panicle spiciform short simple, spikelets sessile 

 imbricate sub 4-ranked bifarious, gl. I. subawned 3-nerved, II rather longer 



