IG 



Leaves nearly all reduced to scales, 

 . . anthers exsertcd ... ... T. fjlaucescens 



Leaves numerous, aclcular or liuear- 



laneeolato, equally distributed 



over the stem : 



Stems and leaves scabrid-puherulous T. hi.'^pidulum. 

 Stems and leaves glabrous : — 

 Leaves acicular, acnte, ascending : ^^ 



Plants lax, spreading^ anthers 



^, ^'^sertc.l T. p,'ostmlum. 



Hants stout, much branched, 



authors included in tube ... r. ^cum/W^/y« 

 J.oaA'es hnear-lanceolate, flattened 



above, recurved, scattered or 

 densely imbricate : 



Plants slender, spreading, much 



branched, anthers exserted T. .olanimuu,. 

 llnnts stout, branches few, 



ascending, anthers includ«-d : — 

 Leaves scattered, stigma sub- 



j '"'"^ •■• - - T.capitcllaUan 



Leaves densely imbricate, 



«Mel-5 mm. long ... T.iuihncatnm. 

 4.Flowel^^ arranged in simple terminal 



^;pikes, racemes or in cyjuose or loose 

 paniculate racemes : 



o. Flowers in simple spikes or racemes, 



bracts not adnatc to peduncles •- 

 • btems rush-like, leaves scale-like or 



larely linear-subulate, bracts 

 p-ith hyaline, scurfy or finely 

 fringed margins: — 

 Flowers in lax spikes, bracts with 

 scurfy or hyaline margins : — 

 -Apical beard of dense woolly 

 Iiairs, anthers included in 

 perianth-tu])e: 

 Bracts and leaves ovate, scales 



yith broad scurfy margins T.junccuni. 

 B'-acts with membranous 

 niaiguis sometimes with 



^ligiit scurfy cdue: 



Piacts subulate,"^ acutely 



acuminate, leaves 



linejr-subulate T „ ,. 7 



Bvacts broadly ovate,' 

 acute, leaves ovate 



sea 1 e s 



•• 



T. scirpioiJes 



