15 



Sectiox II.^ — Barbata. 



Periautli-soo-mcnts witli a dense aj^ical bcanl of stifl" or woolly 



hairs, antliei-s attaclied to tlie seo-nieiits or tube by a tuft of 

 li a i rs : 



1. FloAve]\s solitary or in sniull S-S-flowercd 



clusters at the ends of main and axil- 

 lary branches, bracts furnilng an in- 

 A'olucre, leaves reduced to scaler, 

 rarely narrowlv^ linear or acicular 

 leaves also present : -^ 



Plowers solitary : 



Plants minutely puberuloiis 

 l^lants glabrous : — " 



Plants slender, profusely branclied 



witli scale and numerous long 



T. serlularuutnun^ 



narrowly linear leaves 



■ ■ « 



Plants stout, upper leaves all scale- 

 like, a few stout acicular leaves 



T , paniculatinn. 



bel 



ow 



* • * 



T. euphrasioides^ 



T, microvieria. 



Flowers in small clusters : — - 

 Anthers exsorted 

 Anthers included in perianth tube: — ■ 

 Bracts much shorter than flowers, 



ovate-lanceolate with blackish 

 acuminate tips, leaves ad- 

 pressed, all subulate-acuminate T. capituTifloi^f m^ 

 Bracts nearly as lon^ as flowers, 



ovate-elliptic with membran- 

 ous marg-ins, leaves somewhat 

 spreading- acicular to triangu- 

 lar-lanceolate 



2. Flowers solitary or in groups of 2 or 3 at 



ends of branches, bracts not forming 

 involucre, all leaves well developed : — 



T. cuspidafuv}. 



Anthers included in perianth tube 

 Airthers exserted : — 



riow'ers over 4 mm. long, stj^Ie ex- 



T, rarljioruni^ 



ceeding 2 nun. long 



• • • 



* « 



Flowers not exceeding 2-5 nnn. long, 



style 0-5-1 mm. long: — 

 Branches erect, fastig'ate, leaves 



scattered, bracts us 



T, ZejjJterL 



long 



flowers ... 



fr « « 



« « 



as 



• « « 



Branches spreading, densely leafy. 



7\ cift Isoldes. 



bracts longer than flowers 



« m 



T, BurchelUi 



3. Flowers In small terminal or subterminal 



heads or clusters ; plants more or less 

 prostrate, much branclied: — 

 Leaves few and more or less scale-like, 



especially at ends of brandies : — 

 Lower leaves not scale-like, anthers 



included in perianth tube 



* fr 



T. repandum. 



