140 SAXTALACE.E (lIiU), [Thcsium, 



Branehlets spreading ; leaves reduced to scales : 



Plants covered with minute Lairs (46) hystricoides. 



Plants glabrous C^7) Hystrix. 



Section 2. Bakbata. — Periantli-.segmenta with a more or less dense beard 

 dependent from their apices, margins more or less hairy ; anthers attached to 

 the segments or tube by a tuft of periantli-hairs adhering to their apices. 



*Flowers solitary or in small 3-5-flo\vered clusters at 

 the ends of main and axillary branches ; bracts 

 fonning an involucre ; leaves reduced to scales, 

 rarely narro\\ly linear or acicular leaves also 

 present : 

 Flijwers solitary : 



Plants minutely pubenilous (48) sertulariastrum. 



Plants glabrous ; 



Plants slender, profusely branched, with scale 



and numerous long narrowly-linear leaver (4^*) paniculatum. 



Plants stout ; upper leaves scale-likCj a few 



stout acicular leaves below .,. ... ... (50) euphrasioides. 



Flowerd in small clusters ; 



Anthei-s exserted (51) micromeria. 



Anthers included in perianth-tube : 



Bracts much shorter than flowers, ovate-lanceo- 

 late, with blackish acuminate tips ; leaves 

 adpressed, all subulate-acuminate ... ... (52) capituliflorum. 



Bracts nearl}^ as long as flowers, ovate-elliptic, 

 with membranous margins ; leaves some- 

 what spreading, acicular to triangular- 

 lanceolate (53) cuspidatum. 



**Flowers solitary or in groups of 2 or 3 at ends of 



branches ; bracts not forming an involucre ; all 

 leaves well -developed : 

 Anthers included in perianth-tube (54) rariflorum. 



Anthers exserted : 



Flowers over 2 lin. long; style exceeding 1 lin. 



long 



... (55) Zeyheri 



f 





Flowers not exceeding 1^ lin. long ; style J-J lin. 

 long : 



Branches erect, fastigiate ; leaves scattered ; 



bracts as long as flowers (5G) cytisoides. 



Branches spreading, densely leafy ; bracts longer 



than tluwers (57) Burchellii. 



owerri in small terminal or subterminal heads or 



clusters ; plants mom or less prostrate, mncli 

 brand led : 



Leaves few, more or less scale-like especially at ends 

 of branches : 



Lower leaves not scale-like ; anthers included in 



perianth-tube (58) repandum. 



Leaves nearly all reduced to scales ; anthers 



exserted... (59) glaucescens 



Leaves numerous, acicular or linear-lanceolate, 

 e^-^ually distributed over the stem : 

 Stems and leaves scabrid-pubemlous (60) hispidulum. 



