BOTANY FOR YOUNG PEOPLE. 67 



corolla as having something to do with the ine- 

 quality of the stamens. 



L. I suppose the orders in this class are not 

 taken from the number of pistils as in the first 

 thirteen, or you would not have ceased mention- 

 ing them at this place ? 



E. The orders in this class embrace natural 

 assemblages of plants. There are two orders, 

 the first of which is Gymnospermia or naked 

 seeded, because at the bottom of the calyx of 

 each flower the seeds are seen apparently naked, 

 but have since been proved to possess a thin 

 covering. The next order is Angiospermia, or 

 seeds with a covering. 



L. But as both have coverings, I should not 

 think the names of the orders correct ? 



E. They are not so ; but it is a very difficult 

 thing to alter a name once given, the inconve- 

 nience it would give rise to, especially in botany, 

 might prove very great indeed. In this class 

 are found most of the labiatee or lipped flowers, 

 so called from being divided at the top into two 

 parts, very similar to the lips of an animal. Of 

 these there are two kinds, the ringent or gaping, 

 and personate or closed. 



