1^2 GRAMINEiE. (GRASS FAMILY.) 



leaves linear, narrow, flat, more or less densely velvet]/ and also loosely 

 ciliate; culm-leaves small. Panicle erect, oblong, .05 to .1 long, .02 

 to .03 broad, branches 1-3 together, shorter to longer than spikelet; 

 spikelets pale, G-9-flowered, oblong, .02 to .03 long, .01 broad T\'hen 

 open; glumes linear-lanceolate, acuminate; lower pale linear-lanceolate, 

 more or less densely piiberulent, obsoletely o-nerved, acutely 2-toothed at 

 tip, with a straight or bent awn nearly or quite as long as itself — May 

 to July — Alpine and subalpine Lebanon and Hermon; top of el-Quleb 

 and el-Jowalil (Hauran); Marash. 



3. B. tectorum, L. .1 to .5, erect or ascending, pubescent 

 aoove. Panicle short, somewhat one-sided^ pendulous, with capillary 

 branches; spikelets with awns .03 to .04 long, 5-9-flowered, ^wSfs^-eni, 

 rarely glabrous, linear ; glumes lanceolate, scarious at margins and tip ; 

 lower pale linear-lanceolate, as long as or a little shorter than the 

 straight awn — Spring — Dry places, especially roofs and walls; 

 everywhere. 



4. B, §terili§, L. © .3 to .5, erect, glabrous. Panicle loose, 

 nearly simple; peduncles slender, drooping, longer than spikekt ; spike- 

 lets with awns .06 long, glabrous or piubescent-scabroiis, 6-10-flowered; 

 glumes linear-lanceolate, long-acuminate, lower more than half as long 

 as upper; pales often turning darlc-purple ; tJie lower many-nerved, short- 

 er than awn — Spring — Fields and waysides; everywhere. 



5. B. flabellatui, Hackel. .3, erect, minutely puberulent 

 above. Leaves puberulent, linear, acuminate. Panicle obovate-oblong, 



fan-shaped, .07 to .08 long, .04 wide, dense, branches much shorter than 

 sjnkelets, erect; spikelets pale, 4-8-flowered, glabrous or puberulent- 

 scabrous; glumes linear-lanceolate, acuminate; lower pale linear-lan- 

 ceolate, 5-nerved, the lateral nerves near together; awn as long as pale 

 or a little longer — Spring — Fields and dry places ; Sinai; Jerusalem ; 

 Ladder of Tyre ; Syrian coast ; Aintab. 



6. B, Hauiskneclitii, Boiss. © .3, erect. Leaves flaccid, 

 soft-pubescent. Panicle erect, oblong-lanceolate, branches erect, 

 shorter than spikelets or as long; spikelets 5-7-flowered; glumes linear- 

 lanceolate, long-acuminate; lower pale appressed -hirsute, linear-lanceo- 

 late, .01 long, keeled, about 5-nerved, long-bidentate below tip; awn 

 once and a half as long as pale — Spring — Jebel-el-Quleb (Hauran). 

 Distinguished by its short spikelets and pales. 



7. B. ]flatriten§i§, L. © .3 to .4, erect. Panicle nearly simple, 

 oblong; peduncles short, or as long as spilcelets, erect, or the lower ones 

 somewhat recurved ; spikelets glabrous or pubescent, 5-12-flowered, .04 

 to .05 long; glumes linear-lanceolate, acuminate, lower half as long 

 as upper; pales generally green, the lower icith more or less prominent 

 lateral nerves, about a^ long as awn — Spring — Fields and wa)^sides; 

 everywhere. 



Var. purpura§cen§, Post. Glumes and pales purplish — With 

 type {B. purpurascens, Del.) 



Var. Dclllei, Boiss. Low. Panicle dense, obovate-oblong; spike- 

 lets .01 to .02 long, exclusive of awns; flowerets small — Et-Tih, 

 near Palestine; Sinai; Palmyra. 



8. B. rigidu§, Roth. © .3 to .5, rigid, hairy above. Leaves 

 hairy. Panicle oblong, erect, simple; spikelets C-8-flowered, glabrous, 



