Cleistachna.'] olxxiii. gramine^. (J. D. Hooker.) 163 



Macabab ; on tbe Bababoodan Hills, Siochs, Sitchie. 



Stem tall, stout, simple. Leaves 12-^6 by ^ in., finely acuminate, softly hairy, 

 midrib stout, margins slightly thickened ciliolate ; sheath terete j ligule coriaceous: 

 Panicle 6-8 in., long-peduneled, suberect; rachis and branches sparsely ciliate, 

 branchlets (pedicels of spikelets) strigose with bright yellow hairs. Spikelets J in., 

 crowded ; callus short, bearded ; gl. I dark brown, obscurely many-nerved, hirsute, 

 shining ; II like I but narrower, nearly glabrous ; III 2-nerTed, margins infolded, 

 tip hispid ; IV a twisted awn |-1 in. long, dilated at the base into a hyaline 3-nerved 

 membrane embracing the minute palea. — Very closely allied to the African C. 

 mrghoides, Benth., which differs in its very short ligule, golden yellow spikelets, 

 usually 2-fid gl. IV, and transversely oblong ciliate palea. 



52. GEXtMiVXNXA, Balans. ^ Poitrass. 



Eigid perennial grasses. Leaves narrow. Peduncles erect, bearing 

 terminal narrowly oblong naked heads of 4 male spikelets, forming an in- 

 Tolucriform whorl round a few long-awned females. Male spikelets sessile, 

 2-fld., glames 4 ; I linear-oblong, very coriaceons, truncate, many-nerved, 

 dorsally convex; II rather longer but much narrower, membranous, narrowly 

 lanceolate, 3-nerved ; III hyaline, narrowly lanceolate, 1-nerved, diandrous, 

 its palea (if present) as long as itself ; IV hyaline, lanceolate, diandrous ; 

 palea as long. Feni. spikelets much smaller than the male, cylindric, obliquely 

 inserted on a pedicel by an obconical bearded callus ; glumes 3, I charta- 

 ceouB, linear, truncate, convolute round the others; II similar, but shorter ; 

 III the long twisted awn which is slightly dilated at the very base ; palea 

 short, very broad, tip erose. Lodicules 0. Anthers 2, very long. Styles 

 slender, stigmas long narrow. Grain closely wrapped in the glumes. — 

 Species 3 or 4, Indian, African and Chinese. 



1. G. khasiana, Sack, in CEstr. Bot. Zeitschr. xli. (1891) 50 ; leaves 

 short linear-lanceolate quite glabrous, male spikelets sessile on the con- 

 tracted tip of the peduncle, gl. I entire retuse or notched. 



Khasia Hiiis ; at Nurtiung and Poorung, alt. 4-4500 ft., Clarke. 



Stems densely tufted, a foot high, erect, leafy, terminating in long slender 

 peduncles. Leaves 1-2 in., narrow, acuminate, coriaceous, 1-nerved ; ligule hardly 

 any. Heads 4— | in. long. Gl. I of male fl. polished, tip ciliolate ; gl. I of bisexual 

 spikelet scaberulous, tip ciliolate ; awn of III 2 in. long. — Very near G. capitata, 

 Bal. & Poitr. of China, and probably only a form of that plant, which has rather 

 larger heads and its gl. I has a semicircular retuse tip with a sharp tooth on each 

 side. 



2. G. lanipes, Hook.f. ; leaves very long and narrowly linear sheaths 

 at the base of the stem clothed with silvery wool, male spikelets superposed 

 on a very short rachis. 



Tenasserim, Eelfer. 



I have examined very scanty material of this curious species, which differs from 

 G. Ithasiana in the short stout rootstock with very thick roots, clothed for an inch or 

 more with snowy wool, and radical leaves a ft. long by i in. broad. 



52.> COEIiARTKRON, Hook.f. 



(Genus not in Olavis, p. 5.) 



A very slender, straggling, nearly glabrous grass. Leaves small, elliptic, 



acute at both ends. Spikelets 1-fld., binate, a sessile bisexual and a minute 



often imperfect pedioelled, secund and imbricating on the fragile rachis of 



M 2 



