832 CYPERACEiE. (SED^E FAMILY.) 



witJi ribs and transverse strict — Summer — Wet banks ; coast ; Yarm0q 

 (Hieromax) near M-K^s ; Glior-es-Safieb. 



4. SCIRPUS, L. Bulrush. Clue-Rush. 



Spikelets many-flowered, solitary or variously grouped. Glumes 

 nearly equal, imbricated all around axis, the lower 1-3 often sterile. 

 Style terete, glabrous, not jointed with ovary, nor thickened at base, 

 deciduous. Hypogynous bristles six or — Herbs, with sheaths 

 usually bearing leaves. 



* Inflorescence appearing lateral, the Iracl or the largest of them erect, 

 forming the continuation of the culm. 



t Hypogynous hristles 0. 



1. S. §etaceus, L. .05to.l; root fibrous; Fig. 3(36. 

 culms tufted, filiform, striate. Sheaths acuminate into 

 more or less elongated, subulate tips. Spikelets 1-3, 

 sessile, ovate, .003 long; continuation of culm dilated at 

 base, erect, setaceous, usually longer than spilcelets, cadu- 

 cous ; glumes ovate, concave, keeled, obtuse, mucronate ; 

 akenes minute, obovate, mucronulate, striate lengthwise, 

 and sometimes transversely wavy — Summer — Sands; 

 subalpine Lebanon. 



2. S. Savii, Seb. etMaur. © .1 to .2; root fibrous; ^"oTsaS^ 

 stems tufted. Sheaths ending in a short, subulate limb. setaceus. 

 Spikelets solitary or twin, ovate, .003 long; continuation of culm 

 dilated at base, setaceous, usually shorter than spihelet ; glumes ovate, 

 concave, mucronate, longitudinally grooved ; akenes minute, orbicular- 

 triquetrous, minutely dotted — Summer — Moist sands ; Syrian coast 

 to middle zone of Lebanon and Coelesyria. 



3. S. supiuus, L. © .1 to .2; roots fibrous; culms ascending,- 

 terete, the upper sheath ending in a subulate leaf. Spikelets ovate, 

 .004 to .006 long, in a lateral cluster; continuation of culm erect, many 

 times as long as cluster; glumes ovate, concave, greenish at back, 

 tawny at sides, many-nerved, obtuse, mucronate ; akenes transversely . 

 wrinkled — Summer — Sandy and marshy places ; Marash, and north- 

 ward. 



4. S. Holo§cliaeiius, L. 2f .5 to 1; root-stock horizontal, creep- 

 ing; culms tufted, terete, striate, upper sheaths ending in a linear, 

 semiterete, grooved, rigid leaf, usually shorter than inflorescence. 

 Spikelets ovate, obtuse, densely crowded into spherical, sessile or 

 peduncled, lateral heads, .08 to .1 in diameter; longest leaf of invo- 

 lucre much longer than inflorescence, erect, acute ; glumes ovate, keeled 

 at base, obtuse, mucronulate, ciliate; akenes ovate-triquetrous, minute- 

 ly dotted — May to July — Common. 



Var. geniiinus, Boiss. Plant tall. Inflorescence compound. 

 Var. australis, Koch. Lower. Inflorescence simple, heads 

 smaller, sometimes only 1. 



t t Hypogynous hristles. 



5. S. mucroiiatus, L. 2i! .6 to .8; root fibrous; culms thick, 

 clustered, triquetrous, the base with leafless, obliquely truncate sheaths. 

 Spikelets 10-20, oblong, sessile, closely crowded into a lateral, spherical 



