350 Key to the System of 



1551. Flowers distinctly stalked. 



Creeping, generally beset with scattered spreading hair- 

 lets ; leaves from elliptic- to ovate-lanceolar, irregularly 

 indented; flowers axillary, solitary, on short stalks, 

 supported by broadish foliaceous bracteoles ; corolla 

 whitish inside ; stigma-cover without any conspicuous 

 marginal ciliolation; fruit small, dry. S. Hookeri. 



Flowers almost sessile. 



Often diffuse and much beset with generally short hairlets ; 

 leaves rather small, mostly cuneate-ovate and indented, 

 the floral leaves gradually much diminished in size ; 

 corolla blue or whitish inside except towards the base ; 

 its expanding membranes narrow ; style as well as the 

 inner base of the corolla invested with soft hairlets ; 

 ovulary one-celled ; fruit minute, dry. 



S. microcarpa. 



1552. Flowers almost sessile. 



Never tall, somewhat beset with short hairlets ; leaves rather 

 flaccid, from cuneate- to elliptic-obovate, indented, the 

 lower comparatively large ; corolla rather large, blue 

 inside except towards the base ; stigma- cover densely 

 invested with soft almost purplish hairlets irrespective 

 of the marginal ciliolation ; ovulary two-celled ; fruit 

 small, dry. S. aeimila. 



Flowers on long stalks ... ... ... ... 1553 



1553. Corolla-lobes expanding into broad marginal mem- 

 branes. 



Beset with spreading rather long and rigid hairlets ; leaves 

 very long, from broad-linear to elliptic -lanceolar, some 

 distantly indented ; flowers quite large, few together or 

 solitary, supported by very long foliaceous bracteoles ; 

 calyx-lobes elongated; corolla blue and invested with 

 soft hairlets towards the base inside ; stigma-cover con- 

 spicuously beset with hairlets ; fruit dry. S. hispida. 



Corolla-lobes with hardly any marginal expanding 

 membranes. 



Beset with rather rigid hairlets ; leaves from linear- to 

 cuneate- and elliptic-lanceolar, somewhat indented ; 

 flowers rather large, solitary, supported by linear elon- 

 gated foliaceous bracteoles ; lobes of calyx conspicuous, 

 narrow ; corolla glabrous inside and lilac except towards 

 the base ; style nearly glabrous ; fruit small, dry. 



S. apterantha. 



