212 LUSSOIfS WITS PLANTS 



of this dutchman's pipe from the Leguminosae and 

 from the Violacese. 



243. It is next observed that the floral enve- 

 lope is single; that is, there is only one series, 

 and, following the botanist's rule, we call the 

 flower apetalous. The calyx, however, is gamosep- 

 alous, — of one piece. This calyx has a curious en- 

 largement at its base, c, and a constricted orifice 

 (technically called a throat) where it joins the limb. 

 The limb is 3-lobed. The essential organs {q, 

 Fig. 205) consist of six short stamens, which 

 are joined to a short style. The style bears a 

 3-lobed stigma. The plan of this flower is in 

 threes, and the entire make-up is very unlike any- 

 thing which we have seen. 



243a. The aristoloehias are either vines or upright plants, and 

 they give the name (Aristoloehiaoese) to a small tribe known as 

 the birthwort family, to which the wild ginger or asarum belongs. 

 Several odd and showy tropical aristoloehias are grown in fine 

 conservatories. 



244. The crape myrtle (Fig. 206) is one of the 

 most common of cultivated bushes or small trees 

 from Washington south. It is native of the East 

 Indies, but is planted for the profusion of its 

 rose -red or flesh -color, and rarely white, crispy 

 flowers. The first thing to observe about, this 

 flower, as of any other flower, is the position of 

 the ovary. This is superior. Its kinship is pre- 



