1S9. GRAMINE^. 



Male spikes projecting from the top of a globose or 

 ellipsoid closed bract which contains one fem. spkt. 

 with membranous gls. and is finally of stonj' hard- 

 ness 88. Coix. 



B. Male spkts. numerous in terminal panicles. Fem. 

 spikes fascicled in the axils of foliage leaves and 

 with large coriaceous bracts. Stigmas very long : — 



Fem. spikes of each cluster free from one another, 

 jointed 89. Ettehlcena. 



Fem. spikes of each cluster entirely fused by their 

 axes into a club-shaped radial inflorescence, common 

 rhachis non-articulate, very thick . . . .90. Zea. 



1. CEPHALOSTACHYUM, Munro. 



Large or shrubby bamboos with slender straight stems. Stem- 

 sheaths auricled. Leaves shortly petioled. Spikelets in terminal 

 globose heads, or a panicle of bracteate heads, 1-fld,, elongate, rhachilla 

 produced beyond the flg. glume ; emptj^ glumes 2-3, broad, chaffy, 

 many-nerved, usually long awned ; flg. gls. more membranous, con- 

 volute, awns shorter ; palea thin, many-nerved, keels 2 approximate. 

 Lodicules 3, 3-5-nerved. Stamens 6, free, anthers long. Ovary stipi- 

 tate, ovoid, narrowed into a long thickened stjde, stigmas 2-3, plumose. 

 Grain oblong, beaked, pericarp separable. 



1. C. pergracile, Munro. 



A moderate-sized handsome caespitose bamboo with culms rarely 

 exceeding 2-2-5" diam. in our area, 30-40 ft. high, glaucous and 

 whitish beloAv the scarcely thickened nodes, internodes slender, often 

 18" with very thin walls. Stem sheaths short with rounded, long- 

 fringed auricles light-brown soon deciduous, 4-6" long, young with 

 felted deciduous shining black hairs, afterwards much polished and 

 a bright brown. Leaves 6-14" by 1-2-5", linear-lanceolate, shortly 

 sparsely hairy on both surfaces or glabrescent, sub-glaucous beneath, 

 sheath glabrous except on margins of the small auricles which are 

 ciliate or (in one specimen) with stiff setae -25" long, callus small 

 ciliate. Panicle large, spikelets in bracteate clusters forming filiform 

 drooping spikes, gls. 3-4, lower 1-2 sterile, fertile solitary densely 

 hairy, terminal sterile ; palea long 2-fid, anthers obtuse purple. 



Deep ravines and valleys in Singljhum but rare (Lnia in the Kolhan, Kiringkalor 

 in Porahat and a few places in Saranda) ! Fls. gregariously and sporadically'. 

 Deciduous. 



Blade of stem-sheaths triangular acuminate 2" only long, felted within towards 

 the base and with densely fimbriate setose sometimes reflexed auricles, ligule very 

 narrow. Leaves with rounded or cuneate base, midrib conspicuous, side nerves 

 6-12 each side, sparingly tessellate between. 



The green culms split and crack in drying in Chota Nagpur, but Gamble says 

 they are used for building in Burmah. 



2. DENDROCALAMUS, Xees. 



Large or mod. -sized unarmed bamboos with densely branching root- 

 stocks. Leaves shortly petioled, transverse nervules represented by 

 pellucid glands. Spikelets in globose clusters on the long branches of a 

 compound panicle, ovate, 2-6-fld. ; empty glumes 2-3, ovate, acute, 

 many-nerved ; flg. gls. like the empty ; j^alea of lower fls. keeled, of 



946 



