9 o 



BOTANY. 



a fleshy mass, or spur-like appendages, or stipules (Figs. 

 261, 262, and 263), it is said to be appendicular. 



When one lobe of an anther is abortive, or suppressed, 

 the anther is said to be dimidiate. Fig. 266 represents a 

 dimidiate anther and a connective developed into arms, 

 so that the lobes are entirely disconnected. 



Observe the abortive anther-lobe of Fig. 266. The 

 entire stamen, as well as each of its parts, is liable 



to suppression, abortion, 



Anther jj or imperfect development. 



The symmetry of flow- 

 ers is often destroyed in 

 f.. connective, this way. In some plants 

 the non - development of 

 organs that exist in the ru- 

 -Fiiament. dimentary state is a con- 

 stant character, and should 

 be regarded in describing 



FIG. 266. Dimidiate. 



them. 



Observe the figures on the chart which illustrate these 

 forms of connective. Look over the flowers of your col- 

 lections, and in future describe the form of connective 

 when you can distinguish it. 



EXERCISE XXXVIII. 

 General Features of Stamens. 



EXSERTED. Stamens are said to be exserted when they 

 extend beyond the corolla (Fig. 267). 



INCLUDED. When the stamens are not as long as the 

 corolla, they are said to be included (Fig. 268). 



The entire whorl of stamens is called the andrcecium. 



When the filament is wanting, the anther is described as 

 sessile. 



When the anther is wanting, the stamen is said to be 

 sterile. 



