^EAMINE^. (GRASS FAMILY.) 89d 



nerves not connivent at tip ; upper pale membranous, 3-keeled, stiff-ci- 

 liate at keels — Annuals. 



T. monococcuin, L. 1 to 1.5. Leaves linear. Spike linear, 

 .05 to .07 long not including awns, .005 to .006 broad, 2-ranked, 

 dense; rachis brittle, gabrous or glabrescent; spikelets oblong, about 

 3-2-flowered, with a lower floweret perfect and aristate, sometimes a 

 second sterile and aristate, the uppermost muticous; glumes ovate-ob- 

 long, acutely 2-keeled, scabrous at keels, with 3, triangular, somewhat 

 unequal teeth at tip; lower pale of lowermost floweret keeled, short bi- 

 dentate below tip, awn prolonged from midrib, often .1 long — June — 

 Sof Dagh (northern Syria), and northward. 



T. vulg^arc, L., the cultivated Wheat, varies with muticous or 

 more or less awned forms. The spikes are simple or compound, the lat- 

 ter being more cultivated in Egypt, rarely in our district. Many believe 

 that cultivated wheat is derived from some species of -^gilops. 



87. i£01L0PS, L. ^GiLOPS. 



Spikelets sessile at each joint of the rachis, 3-several-flowered, 

 parallel to the rachis, the terminal spikelet, or the upper 2-3 sterile, more 

 slender than the others. Glumes 2, coriaceous or cartilaginous, convex, 

 not keeled, many-nerved at back, truncate at apex, entire or toothed, 

 teeth sometimes long-awned. Lower pale papyraceous, convex, not 

 keeled, many-nerved, nerves not connivent at tip, 1-3-toothed, teeth 

 muticous or awned; upper pale with 2, ciliated keels — Annuals. 



* All the glumes awned. 



1. ^. ovata, L. Sha'ir Ihlis. .2 to .4. Spike ovate, dense, 

 .02 to .04 long; spikelets 3-5, the lowermost generally rudimentary; 

 others 3-4-flowered, ovate, narrowed at top, the upper 1 or 2 sterile, 2- 

 flowered; glumes inflated, mostly 4- sometimes 5-awned; lower pales 

 nearly as long as glumes, 2-3-awned, the awns of both glumes and pales 

 nearly equal — Spring — Grassy places ; common. 



Var. triari§tata, Coss. et Dur. Two or three of the lower spike- 

 lets rudimentary ; glumes 2-3-awned; lower pales 1-2-awned — Grassy 

 places; shading off to type. 



Var. Lorentii, Boiss. Glumes or some of them 2-awned, one awn 

 broader than the rest, 4-6-nerved — Syrian coast ; rare ; shading off into 

 the last. 



Var. quinqueari§tata, Post. Glumes 5 -aristate — Aintab; 

 Marash; Akher Dagh. 



2. JE. triuiiciali§, L. .2 to .4. Spike linear, slender, .05 to 

 .06 long; spikelets 5-7, each 2-3 flowered, oblong, the upper sterile, and. 

 the lower tico or three rudimentary; glumes not inflated, 3-awned, or 

 those of the lower spikelets 2-awned, awns of upper spikelets twice as 

 long as those of the lower; lower pales of the lower spikelets d-toothed 

 or short-awned ; those of the terminal spiJcelet long-awned — Spring — 

 Grassy places; common. 



Var. bracliyatliera, Boiss. Awns short, the terminal about 

 twice to four times as long as glume — Coast; Gilead. 

 * * Lower glumes muticous or short-awned ; glumes of terminal s2nMet 

 very long. Lower pales of upper spikelets, rarely of all, long-awned. 



3. ^. caudata, L. .3 to .5. Spike .06 to .08 long, .005 



