GRAMINK^. (aRASS FAMILY.) 901 



Var. macrathera, Boiss. Awqs of upper 3-4 spikelets, many 

 times as long as spiJcelets — Dimas (near Damascus). 



7. ^. bicorni§, Forsk .3 to .6. Spike not including awns 

 .06to.l long, .008 broad, 2-ranked; spikelets somewhat longer than 

 internodes, about 3-flowered, the upper floweret tabescent, not awned ; 

 glumes coriaceous, obliquely oblong, convex, truncate or retuse at tip, 

 1-3-denticulate, scabrous at nerves, somewhat shorter than pales ; lower 

 pales oblong, all jjroduced into a scabrous aicn, twice to ten times as long 

 as pale, the lateral nerves- at base of axon sometimes produced into a short 

 mucro — April and May — Sands and waste fields; coast. 



Var. mutica, Post. Lower pales of lower or of all the spikelets 

 muticous — Haifa. 



8. iE. Auclieri, Boiss. .3 to .5. Spikeloose,dgzag,2-Ya,nked, 

 .08 to .1 long; spikelets 5-11, 3-5-flowered, as long as joints of axis in 

 which they fit; glumes of all the spikelets oblong, unequal, convex, 

 obsoletely keeled, truncate and mucronulate at tip; lower pale longer 

 than glumes, oblong, truncate at tip, in lateral spikelets 1-2-denticulate 

 at tip, the lateral teeth rounded, the middle acute; lower pale of terminal 

 spike tapering into an awn many times its length — April to June — 

 Fields ; coast ; interior tablelands ; ascent from el-Ghor to Nebo (Moab). 



Var. polyatliera, Boiss. ' Lower pales of lateral spikelets pro- 

 duced into an awn half to twice as long as they — Coast ; Aintab. 



8§. I^EPTURUS, K. Br. Lepturus. Sea Hard-Grass. 



Spikelets solitary, immersed in the hollows of the rachis, 1-flower- 

 ed, with occasionally a rudiment of another floweret, or 2-fiowered. 

 Glumes of all the S['ike!ets 2, coriaceous, many-nerved, in the lateral 

 spikelets placed edge to edge in front of spikelet, open before flower- 

 ing, then closed, in the terminal spikelet opposite. Flowerets mem- 

 branous, oblique to the axis, the pales of equal length, the lower con- 

 cave, muticous, the upper 2-keeled~ Annuals, with filiform spikes. 



Lr. iiicurvatus, L Fia. 420. 



Shu* air. Timzein. Haidah. 

 .1 to .4; culms clustered, de- 

 cumbent or ascending, incurved, 

 often branching at base. Leaves 

 linear, fiat, the uppermost near 

 the base of the spike. Spike Tipofspike ofLeptm-usincurvatus. 



.05 to .2 or more long, .001 to v i' v 



.0015 thick; spikelets usually longer than internodes; glumes coriace- 

 ous, equal, 3-5-nerved, longer than ^o-^(iYQt\ pales lanceolate acuminate ; 

 anthers minute, ovate-oblong — February to May — Sandy places and 

 fields; coast; Sinai. 



89. PSIL.URIJS, Triu. Psilurus. 



Spikelets solitary (rarely twin), immersed in hollows of axis, 2- 

 fiowered, one floweret sessile, perfect, the other pedicelled, usually 

 abortive. Glume 1, trianguiar, situated at the outer side of the spike- 

 let, much shorter than pale. Pales parallel with the axis, the lower 1- 

 nerved, linear-lanceolate, subulate-aristate, enclosing the 2-keeled, 

 ciliolate upper pale. Stamen 1 — Annual herbs, with filiform spikes. 



P* nardioMes, Trin. .1 to .3; culms filiform. Leaves fill- 



