Cli &IX.] CLASSIFICATION. 115 



4^8. If you examine with a microscope one of the florets of 

 the disk, you will perceive it to be tubular, containing one pis- 

 til, surrounded by five stamens, the styles of which are separa- 

 rate, but the five anthers grow together, fcrming a tube around 

 the pistil. It is this union of anthers which gives to compound 

 flowers a place in the class Syngenesia, which name signifies 

 anthers growing together. 



489. The florets of the ray are called neutral, having neither 

 stamens nor pistils ; the circumstances of its having neutral 

 florets in the ray, places the Sunflower in the order Frustranea 

 of the 17th class. 



490. Although the term compound is applied to the flowers 

 of the class Syngenesia, the real circumstance on which the 

 class is founded is not the compound character of the flower, 

 but the union of anthers. 



491. A Clover blossom, in one sense, may be said to be com- 

 Vound. as it is a collection of many little flowers compounded 

 ^>r united into one; but each little floret of the clover has its 

 owa calyx ; there is no general calyx inclosing the whole, as in 

 most of the Syngenesious plants, but the florets are arranged in 

 such a manner as to form a head; the anthers are separate, the 

 rilaments are connected at their sides, and this latter circum- 

 stance, together with the papilionaceous form of the corolla, 

 places the clover in the class Diadelphia. 



492. Most of the Syngenesious flowers are composed of two 

 sorts of florets; they are either tubular, or strap shaped, (ligu- 

 Ltite,) appearing flat like a strap, both kinds are toothed at the 

 edge ; the iigulate are sometimes called Semiflorets, or half 

 flowers. 



4S8. What is the appearance of the florets of the disk when exam- 

 ined by a microscope 1 

 . 489. Why are florets of the ray c^led neutral? 



490. Is the class Syngenesia founded on the compound character of 

 flowers 7 



491. Why does not the clover belong to this class 



492. What two sorts of florets are generally fcunc. in Syngenesiou; 

 tlanrs 1 



