46 



GENERAL BOTANY 



leaves : but are always distinguished by the absence 

 of axillary buds. 



In pinnate leaves or pinnas the leaflets may be 

 alternate or in pairs (opposite) and in the latter case, 

 if there is a terminal one, so that the number of 

 leaflets is odd, as in MURRAYA EXOTICA or in fig. 9, 

 the leaf is said to be odd-pinnate or impari-pinnate. 

 If there is no terminal leaflet, so that the number 

 of the opposite leaflets is even, as in the Tamarind 

 and ADENANTHERA, the leaf is pari-pinnate, or abruptly 

 pinnate. When there are only three leaflets the leaf 

 is generally spoken of as trifoliate, and we distinguish 

 as palmately trifoliate those in which the three leaflets 

 are attached together at the end of the rachis as in 

 CR'ATAEVA RELiGiosA (fig. 10) from the pinnately 

 trifoliate, in which the rachis is continued a little beyond 

 the first pair of leaflets, as, for instance, in ERYTHRINA 

 INDICA (fig. 9). 



FIG. 11. YOUNG LEAVES OF ERYTHRINA INDICA 



