CXLII. XYRIDEiE (bROWN). 



[Xyris. 



6, X. zombana. 



Bracts not ciliolate, entire, lacerate or erosulate. 



fKeel of the lateral sepals quit« entire, neither 



ciliate nor scabrid (see also under ft, as 



the very minute scabridity on the keel of 



some of the species there platfed may be 



easily overlooked, unless examined onder 



a powerful lens). 



Peduncles ^-1^ lin, broad, flattened, 



2-edged ; spike globose ; bracts coria- 



eous straw-coloured, with a green keel 



at the apex 5. X aneeps. 



Peduncles terete or slightly compressed, 



rarely 2-edged, and then less than 



i lin. thick, striate. 



Peduncles stout, 1-1^ lin. thick ; spike 



globose, dark brown ; keel of 



lateral sepals with a very narrow 



-wing 



Peduncles few, ^-1 lin. thick ; rhizome 

 creeping; spike globose or ellipsoid, 

 dark brown ; keel of lateral sepals 

 with a moderately broad wing . 7. X. capetisis. 

 Peduncles numerous, filiform or very 

 slender, ^-^ lin. thick ; rhizome 

 not creeping. 

 Leaves subterete or subulate-filiform ; 

 spikes 1^-2^ lin. thick, blackish, 

 shining ..... 

 Leaves linear; spikes small, few- 

 flowered. 

 Bracts emarginate, slightly re- 

 curved at the apex, luscous 

 with a green keel on the upper 

 part ..... 

 Bracts obtuse or subacute, not re- 

 curved at the apex. 

 Keel of the lateral sepals dis- 

 tinctly (but usually nar- 

 rowly) winged, at least in . 

 the basal part. 

 Bracts subcoriaceous, light 

 brown, the inner rather 

 stoutly keeled on the 

 upper half; lateral sepals 

 broadly lanceolate, acute 16. A', htiillensis. 

 Bracts very thin, submem- 

 branous, light reddish - 

 brown, with broad trans- 

 parent straw - coloured 

 margins; lateral sepals 

 somewhat oblong-lanceo- 

 late, acute . . . 17. -Y. anisophylla. 

 Bracts thin, dull purplish, the 

 outer nearly as long as 

 the inner; lateral senals 



14. X. maJcuensis. 



15. A". humilU 



