898 GRAMINEffl. (GRASS FAMILY.) 



sed; glumes shorter than flowerets, oblong-lanceolate, acuminate, 

 grooved on either side of scabrous keel ; lower pale linear-lanceolate, 

 ^vith no lateral nerves, keel scabrous, the midrib excurreot in a mucro 

 or more or less lengthened awn — May — Hauran to Damascus, Palmy- 

 ra, Aleppo, and northward, and eastward; Sinai. 



§4. HETERAIVTHEL-IUH, Hochst. Heteranthelium. 



Spike oblong to cylindrical, 2-ranked. Spikelets sessile, solitary at 

 the teeth of a brittle axis, many-flowered, all the flowerets long-aristate ; 

 some spikelets with lower two flowerets or one only perfect, having 

 two pales, the rest crowded on a stalk and Fig. 417. 



reduced to a single pale; other spikelets 

 with all the flowerets neuter, composed of a 

 single pale. Glumes 2, subulate, rigid, 

 somewhat remote from flowerets, shorter 

 than they. Lower pale of fertile flowerets 

 coriaceous, ovate, ventricose below, 5-nerv- 

 ed above, gradually tapering into a long 

 awn; upper pale membranous, linear-ob- 

 long, 2-keeled, the nerves excurrent in short 

 awns — Herbs with aspect of Hordeum. 



H. piliferiim, Hochst. © .1 to .8, 

 tufted ; culms geniculate-ascending, leafy. 



Leaves generally hairy, linear, acuminate, Fertile spikelet of Heteranthelium 

 flat, often longer than spike. Spike oblong, piliferum, magnified |i diameter. 



.03 to .04 long, .015 to .025 broad; spikelets 20-25, green or tinged 

 with violet, bristly hairy throughout; sterile spikelets principally at 

 base and tip of spike, but some intermixed with fertile spikelets in the 

 middle, their single pale dilated at base, long-aristate; lower pale of 

 fertile flowerets densely warty and bristly, and long-aristate — April to 

 June — Jebel Bartik; middle and subalpine Antilebanon; Coelesyria; 

 Damascus; Aleppo, and northward, and eastward. 



85. SECALE, L. Rye. 



Spike cylindrical. Spikelets solitary at teeth of rachis, 2'flowered, 

 sometimes with a rudiment of a third, pedicelled floweret. Glumes 2, 

 lateral, nearly equal, linear-subulate, aristate, keeled, destitute of 

 nerves. Lower pale somewhat coriaceous, linear-lanceolate, pectinate- 

 ciliate, tapering into a long awn; upper pale 2-toothed, 2-keeled, ser- 

 rulate-ciliate at keels — Annuals or perennials. 



S. inoiilanuin, Guss. 1i lor more; root fibrous; culms leafy. 

 Leaves linear, flat, flaccid, often tomentellous. Spike linear, elongated, 

 .05 to .1 long, .008 to .01 broad, somewhat nodding; axis brittle, its 

 margins bearded ; spikelets 2-flowered; glumes linear-subulate, half as 

 long as flowerets; awn usually longer than lower pale — June and July 

 — Akher Dagh. 



86. TRITICIJM, L. Wheat. mntaJi. Qomh. 

 Spikelets solitary at teeth of the rachis, parallel to it, 2-5-flowered, 

 laterally compressed, the upper floweret often tabescent. Glumes 2, 

 coriaceous, ovate to oblong, ventricose, often unequal at the two sides, 

 keeled, obliquely truncate at tip, usually 1-2-tootlied, muticous or aris- 

 tate, shorter than flowerets. Lower pale more or less keeled, somewhat 

 T«ntricose below, entire or bidentate at tip, long-aristate or muticous, 



