366 . Key to the System of 



1607. Corolla yellowish or pale-reddish, the lobes inside 



densely beset with hairlets. 



Leaves mostly appressed and lanceolar, pungent-pointed, 

 denticular-ciliolated, paler on the underside ; flowers 

 axillary, solitary, nearly sessile; sepals rather large, some- 

 what reddish ; corolla-tube elongated, lobes also long, its 

 hairlets lax and elongated ; stamens much emerging ; 

 anthers long and narrow ; fruit comparatively large, 

 ovate-globular, outside greenish. 



S. adscendeus. 



Corolla wholly green,, the lobes only at the summit 

 beset with hairlets. 



Leaves small, spreading, from lanceolar- to broad-linear, 

 pungent-pointed, almost flat, denticular-ciliolated ; flowers 

 quite small, in axillary or lateral or seldom terminal 

 clusters ; corolla-tube exserted ; fruit globular, whitish 

 'outside. S. serrulata. 



1608. Corolla-lobes inside beset with hairlets 1609 



Corolla-lobes on both sides glabrous ... ... ... 1629 



1609. Corolla white inside ... 1610 



Corolla either red or yellowish and greenish ... 1628 



1610. Corolla-lobes only at the summit beset with hairlets. 



Maritime ; leaves small, thick, from cordate-oval to narrow- 

 elliptical, flat ; flowers minute, in axillary or lateral, 

 clusters ; fruit very small. S. ovalifolia. 



Corolla-lobes inside completely beset with hairlets ... 1611 



1611. Flowers solitary or two or rarely more together ... 1612 

 Flowers in spikes or clusters 1618 



1612. Leaves mostly ovate or orbicular or cordate ... 1613 

 Leaves mostly linear or lanceolar ... ... ... 1615 



