208 Key to the System of 



984. Leaves and bracteoles very acute. 



An alpine plant, much invested with appressed and almost 

 silver-shining hairlets ; leaves small, linear-cylindrical, 

 channelled, pointed ; flowers solitary, axillary, almost 

 sessile ; bracteoles small, as well as the calyx- lobes long- 

 pointed, inserted at the base of the calyx ; fruit oblique- 

 ovate, much compressed, acute, about as long as the 

 calyx. P. fasciculata. 



Leaves and bracteoles almost obtuse. 



A small half -shrub, chiefly maritime, beset with short hair- 

 lets ; leaves small, usually linear-cylindrical, channelled ; 

 flowers comparatively small, mostly scattered, often 

 singly terminal, sessile, surpassed by the surrounding 

 leaves ; bracts exceeding the calyx ; bracteoles almost 

 elliptical, inserted below the calyx ; calyx-lobes nearly 

 equal, much pointed ; fruit small, oblique -ovate. 



F. teiuiifolia. 



985. Flowers on much elongated stalklets. 



Prostrate, somewhat beset with short hairlets ; leaves small, 

 spreading, from linear- to elliptic-lanceolar ; stalklets 

 solitary, almost capillary ; bracteoles linear, inserted at 

 the base of the calyx ; lobes of the calyx all acute ; fruit 

 turgid. P. pedunculata. 



Flowers sessile. 



An erect shrub, much beset with short hairlets ; leaves 

 from ovate- to cuneate-obcordate, shortly bilobed or 

 truncate ; flowers mostly terminal in small headlets ; 

 bracteoles linear-lanceolar, inserted on the tube of the 

 calyx, above its base ; fruit beset with hairlets ; arillar 

 appendage of the seeds slightly fringed. P. scabra. 



986. Leaves flat or recurved at the margin ... ... 987 



Leaves incurved at the margin 993 



987. Leaves nearly or quite flat ... ... ... ... 988 



Leaves recurved at the margin ... ... ... 990 



988. Leaves always glabrous on both sides. 



An erect shrub, never tall; leaves rather small, rigid, 

 linear-cuneate, usually notched at the summit, never 

 pointed ; headlets small, with few flowers in each ; 

 bracteoles very narrow, inserted on the tube of the 



