424 Key to the System of 



Calyx-lobes and petals white... ... 1822 



1822. Calyx-lobes as well as the petals ovate-elliptical and 



all of almost equal size. 



Dwarf; leaves comparatively short, rather lax, linear, acute, 

 pointed, mostly distichous-basal ; flowers small, on very 

 thin elongated stalklets, in somewhat paniculated umbels 

 or fascicles ; bracts narrow ; stamens and pistil about as 

 long as the petals ; filaments almost disconnected ; style 

 shorter than the stigmas ; fruit small, nearly globular, 

 slightly angular ; seeds few in each fruit-cell, reddish- 

 brown. S. pulckellum. 



Calyx-lobes from linear- to elliptic-lanceolar, con- 

 siderably smaller than the elliptical-obovate petals. 



Rather tall ; leaves long, somewhat flaccid, broad-linear, 

 pointed, mostly distichous-basal ; flowers rather small, in 

 much paniculated umbels or fascicles ; bracts narrow ; 

 stamens nearly as long as the petals ; filaments connate 

 towards the base ; style hardly or considerably shorter 

 than the stigmas ; fruit globular-ovate, slightly angular ; 

 seeds several in each fruit-cell, reddish-brown. 



S. paniculatum. 



PATERSONXA. 



1823. Quite glabrous ... 1824 



Somewhat beset with silk-like vestiture ... ... 1825 



1824. Stems abbreviated. 



Usually rather dwarf ; stems leafless, hardly compressed ; 

 leaves rigid, greyish -green, narrow-linear, pointed, convex 

 on both sides, usually much exceeding the stems ; outer 

 bract rigid, streaked ; tube of the calyx upwards filiform, 

 somewhat exserted ; filaments connate towards the base ; 

 summit of style continuing erect ; fruit slender. Figure 

 114. P. glauca. 



Stems elongated. 



Stems somewhat compressed, leafless ; leaves firm, broad- 

 linear, elongated, much pointed, flat, surpassed by the 

 stems ; outer bract rigid, pointed, almost smooth ; tube of 

 the calyx very slender, enclosed ; summit of style soon 

 turned downward; fruit slender. P. longiscapa. 



