19 



€. Flowers in loose paniculate racemes : 



Plants lax with spreading leafy 



branclie,^, leaves linear-lanceo- 

 late, bracts longer than flowers 



Plants stiff erect, witli erect branches, 



leaves scattered, narrowly linear. 



7\ (/t/psopJuloijLS 



bi^acts shorter than flowers 



■ # 



T. utile. 



5. Flowers in compact rounded heads, short 



compact spikes or dense corymbose 

 Leads or clusters, leafy subshrubs : — 



a. Flowers in corj^mbose heads or clus- 

 ters : — 



F 



Bracts conspicuous, stigma sessile : — 

 Bracts broadly oblanccolate with 



conspicuous translucent mar- 



gins, foxy-red 



V « • 



Bracts lanceolate, margins incon- 

 spicuous, greenish-yellow . . . 



T, fallal. 



T. helichrxfsoides 



Bracts inconspicuous, style elongate T. umhelliferuvx. 



fi. Flowers in rounded heads or com2>act' 



spikes : 

 Leaves and bracts covereel with a 



fine pubescence : 

 Leaves adpressed to stem, stigma 



sessile 



■ 9 



• • « 



T. Boissieranxim 



Leaves spreading, style elongate ; — 

 Leaves very dense, bi'acts green. 



flowers in rounded heads. ., T. puhescens 



Leaves more scattered, bracts 



ruddy, flowers in compact 



spikes 



* • 



* « 



• * V 



T, rufescens. 



Leaves and bracts with scabrid mar- 



gins 



* > » 



• « b 



T. scahruni. 



Leaves and bracts glabrous: — 



Stems woody, flowering branches 



with leaves remote 



« ■ • 



» » « 



Stems herbaceous, leaves numer- 



T, poli/cephaluvi 



ous 



Leaves imbricate, adpressed, 



stout, obtuse 



* « 



T. microcepJialurn 



LeaA'es somewhat spreading, 



linear, acute to acuminate T .irycnanthum. 



Leaves glabrous, bracts with broad 



hyaline and more or less scarious 

 'or rarely finely scabrld-puberu- 



lous margins : 

 Stems prostrate 



Stems erect : 



V ■ 



• t • 



T . Ecklonianutn^ 



Infloresceiices dense spikes: 

 Leaves recurved, bracts gla- 



brous, style elongate 



• « • 



T. Sonderianunu 



B; 



