GRAMINE^. (GBASS FAMILY.) 85 1 



11. EL.IOXURU8, Willd. Elionurus. 

 Spikelets compressed, jointed with axis, hirsute, in pairs at each 

 liollow or at the lower hollows in threes, one or the two lateral sessile, 

 2-flowered, the other or middle one pedicelled, appressed to the axis, 

 sterile. Glumes 2, somewhat coriaceous, Ian- pj^^ 373^ 



ceolate, concave, acuminate or somewhat 

 caudate, ciliate at margin. Lower floweret 

 staminate, with 1 pale, upper perfect, with 

 3, hyaline pales, the lower concave, the upper 

 ciliate at keel. Stamens 3, with linear anthers. 

 Styles 3, terminal, long; stigmas feathery. 

 Caryopsis oblong, compressed, free, with a 

 dot-like, basilar hilum — Herbs with the 

 spikelets arranged in a cylindrical, hirsute 



spike. 



Two lateral fertile, and one 

 £. ]lir§UtU§, Vahl. 2f .3 to .6; root- central sterile, spikelets of 

 stock indurated, furnished with stout fibres ; Eiionurus hirsutus. 2 diameters, 

 culms erect, woody below, branching; sheaths with dilated, bearded 

 mouth, lamina linear, acuminate, convolute. Spike .1 to .14 long, .01 

 broad, silvery-silky; rachis brittle; lower glume larger, sometimes bifid 

 at tip — Spring — Sandy deserts ; Arabia Petrsea. 



12. PHACEL.URUS, Griseb. Phacelurus. 

 Spikelets somewhat jointed with axis, compressed, a pair in each 



hollow, one sessile, with 3, free glumes, the other with a pedicel which 

 is .not adnate to the axis, both 3-flowered, the lower floweret staminate,' 

 the upper fertile, or in the pedicelled spikelet also staminate. Glumes 

 coriaceous, lanceolate, one-sided, keeled. Pales membranous, lanceo- 

 late, of equal length, the lower many -nerved, the upper 2-nerved. 

 Stamens 3, anthers elongated. Styles terminal, stigmas feathery, 

 emerging near the base of the floweret — Perennial herbs, with spike- 

 lets in long, loose, panicled or solitary spikes. 



P. dig'itatus, S. et Sm. 2f 1 to 1.6; root-stock thick, branching, 

 creeping; shoots clothed with ovate, many-nerved, imbricated scales. 

 Leaves linear, flat, glaucous, margin scabrous, densely hairy at sheaths, 

 especially the lower. Spikes 3-5, .15 to .3 long, in a short panicle, or 

 1, terminal, stiff, loose; spikelets scattered, the pedicel of the upper 

 sometimes as long as spikelet ; glumes lanceolate, acuminate, nerved — 

 Spring — In water ; Dead Sea ; Marash. 



13, HEMARTHRIA, R. Br. Hemarthria. 



Spikelets jointed in hollows of compressed rachis, 2, one sessile, 

 sunken, the upper glume adherent to near its tip with the rachis, the 

 other pedicelled, the pedicel adnate to the rachis, but both glumes free; 

 both the spikelets 1-flowered, perfect, with sometimes the lower pale 

 of a neuter floweret. Glumes coriaceous, oblong-lanceolate, rather 

 concave, in the sessile spikelet opposite to the rachis, in the pedicelled 

 parallel to it ; the pale of the neuter floweret, if present, and the lower 

 pale of the perfect floweret, oblong, acute, the upper pale of the fertile 

 floweret oblong-linear, all membranous, thin. Stamens 3, terminal, 

 stigmas feathery. Caryopsis oblong, compressed at back, covered by 

 the pales but free, with a dot-like hilum at base of ventral" surface — A 

 perennial herb, with spikelets appressed on linear, solitary or clustered, 

 axillary or terminal spikes. 



