74 Key to the System of 



366. Tube of the corolla entire. 



Always herbs, with whitish acrid sap ; anthers connected ; 



corolla often blue. Isotoma. 1527 



Tube of the corolla slit unilaterally. 



Usually herbs, with whitish acrid sap ; anthers connected ; 

 corolla often blue. Figure 91. Lobelia. 1528 



COODENXACEAE. 



367. Tube of the corolla entire. 



Herb ; flowers headlike-crowded ; corolla blue ; lobes of the 

 corolla without expanding membranes ; anthers connate ; 

 fruit dry, minute, free from the enclosing calyx-tube, 

 indehiscent. Bruiionia. 1539 



Tube of the corolla unilateraUy slit 368 



368. Anthers connate. 



Herbs or small shrubs ; calyx small-lobed or lobeless ; 

 corolla often blue, its lobes provided with expanding 

 membranes ; fruit dry, indehiscent. Dampiera. 1540 



Anthers disconnected ... ... ... ... ... 369 



369. Fruit beyond its base free from the calyx. 



Herbs or seldom half -shrubs ; calyx usually divided into 

 sepals ; corolla often yellow ; lobes of the corolla provided 

 with expanding membranes; fruit dry, dehiscent. Figure 

 95. Velleya. 1544 



Fruit completely connate with the calyx ... ... 370 



370. Lobes of the corolla unprovided with expanding mem- 



branes. 



Succulent herb ; corolla somewhat whitish or slightly purp- 

 lish ; calyx lobed ; corolla-lobes unilateral ; fruit suc- 

 culent, hardly dehiscent, few-seeded. Selliera. 1546 



Lobes of the corolla provided with expanding mem- 

 branes ... ... - ... ... ... ... .371 



