Pl,end,ph, 9. CYPERACE.32. 42. Isolepis. 79 



Root horizontal, in tufts; cuh7is many, sea-green, 3 feet 

 high, stiff; sheaths 3 or 4, alternate brown, streaked, acute, 

 apex ending in a short barren culm 2 or 3 in. long ; patikic 

 unequal, stiff^ divaricating; lower hractea acute, upright, 

 6 in. long ; upper green, short, divaricated ; heads 3 to 8, 

 verrucose ; spikelets rounded ; stamens 8. 



(3. australis. Middle head sessile, the rest footstalked ; 

 culm slender. 



Juncus minor acutus maritimus prolifer, Pluken. Phyt. 40, 5. 



Scirpioides ^ 2, No. 2, Midieli N. F. G. 53, 



Scirpus australis, Lin. S, P. 72. 



Scirpus Holosclioenas /3, Smith Fl. Br.53. 



y. Romana. Head all sessile; culm very slender. 



Scirpioides § 3, Nr>. 2, Micheli N. P. G. 52. 

 Scirpus Roinanus, Lin. S. P. 72. 

 Scirpus llolosciicenus y, Smith F'. Br. 53. 

 Isolepis Holoschcemis romanus, Rosm. S. F. 151. 



c. Spike terminal, solitary or aggregate; hracteae I or 

 2-leaved; akenium streaked longitudinally, 



3. Isolepis setacea.. Bristle smoothrusk. 



Culm bristlelike, slender, unbranched ; spikes 1 to 4, 

 nearly sessile, horizontal; hractea 1, leaflike, long, upright, 

 much shorter than the culm ; akenium roundish. 



Scirpus foliaceus Immilis, Rail Syn. 430, 11. 



Juncellus Lobellii, Park. 1192. 



Grainen junceum inaritimum exile Plimmnstli, Park. 1270. 



Scirpus \ 2, No. 5, Micheli N. P. G. 50. 



Scirpus setaceus, Lin. S. P. 13. 



Isolepis setacea, R. Brown Prod. 222. 



Plrftnoutk rush. Small cinbrush. 



Wet sandy ground; annual ; July and August. 



Root fibrous, in tufts; culms many, 3 in. high, rather 

 stiff; sheaths ending in a short, channelled, barren stem; 

 spike apparently lateral, ovate, 1, 4, 6, or 1 2-flovvf ered, va- 

 riegated with white, green, and purple ; hractece sheathing, 

 dilated at bottom, edge scariose, concave ; akenium obovate, 

 very small. 



XIL 43. TRICHOPHORUM. Persoon. Hares-tail 

 Spathelle 1, imbricate, all round; glumelles bristlelike; 

 bristles 6, woolly, crisp, smooth, longer than the glumes, 

 becoming exserted; stamens 3; style 1, not dilated at bot- 

 tom, jointed, falhng off; stigmata 2 or 3 ; akenimn ovate. — 

 Root creeping, perennial, in tufts; adm angular, rough. 



