354 Key to the System of 



1566. Flowers quite minute. 



Annual, scantily beset with spreading hairlets ; basal leaves 

 crowded, pinnatilobed or some merely short-incised ; stem- 

 leaves present only at the inflorescence, small, from 

 rhombous-cuneate to lanceolar, scantily indented or entire; 

 stalks elongated, corymbously or racemously approxi- 

 mated, unprovided with bracteoles ; lobes of the calyx 

 comparatively broadish ; expansions of the corolla from 

 yellow turning white or purplish ; fruit globular -ovate, 

 nearly unilocular ; seeds few, rather large, collateral, 

 blackish when ripe, surrounded by a pale broadish 

 margin. G. pusilliflora. 



Flowers rather small or of conspicuous size ... 1566& 



1566&. Upper corolla-lobes almost dimidiated ... ... 1567 



All corolla-lobes on both sides equally expanded ... 1568 

 1567. Ripe seeds brownish. 



Nearly glabrous, producing very slender offshoots ; leaves 

 rather small, tufted at the base and at the upper end of 

 the stems, from broad- to linear-lanceolar, mostly entire ; 

 flowers small, solitary, on rather long and thin stalks, 

 crowded among leaves at and near the summit, rarely at 

 the base of the stems ; bracteoles usually absent ; corolla 

 outside beset with appressed shining vestiture ; fruit 

 small, roundish-ovate ; dissepiment extending far into 

 f;he fruit-cavity ; seeds flat, expanded into a pale rather ' 

 narrow margin. G. heteromera. 



Ripe seeds black. 



Seldom much elongated, sometimes erect, beset with minute 

 spreading hairlets ; leaves throughout approximated, 

 basal and scattered, from rhomboid -ovate to narrow - 

 lanceolar, denticulated or occasionally some incised ; 

 flowers rather small, solitary, axillary, on conspicuous 

 stalklets ; bracteoles absent ; corolla with an unilateral 

 protrusion towards the base, its outside vestiture subtile, 

 very short, without any lustre, all its lobes on both sides 

 equally membranous-expanded ; fruit roundish, com- 

 pressed, almost unilocular ; seeds few, comparatively 

 large, orbicular, all placed at the same level, surrounded 

 by a broad marginal pale expansion. 



G. cycloptera. 



