Jg4 ON THE STRUCTURE AND CLASSIFICATION OF SEEDS. 



Third class, 



Caniculated, or channelled, 

 so called, from a channel, 

 which begins within tiie re-^ 

 cess, and runs on beyond 1 A numerous class, containing 

 the primordial leaf. See ^ most of the papihonaceous, 

 fig. 10, the upper part re- Jcruciforra, and labiate plants, 

 presenting the corculum;, 

 the lower, the whole of thej 

 embryo together. 



Fourth class. 



Nonmammiferous, having noi 

 teats, and in recess: dis- 

 tinguished also by having 



the primordial leaves a:^ Grasses and palms, 

 well as the cotyledons a 

 the head of the corcului .. 

 See Fl. VI, figs. 1 and 2. 



Fifth class. 



Compound or mixed seed. J Nymphea,coffee,soraespiceSj 

 See PI. VT, fig. 3. "[ and cotton tree. 



Fig. 6 is merely to show the manner in which the stalk, 

 n, runs through the corculum; the primordial leaves, e e^ 

 being within ; the cotyledons, c c, shooting from the out- 

 ward cylinder. 



In all the figures the same letter? of reference are used, 

 a, the line of life, or impregnating duct, h, nourishing 

 vessels, c, cotyledons, d, the breast and teats, e, primor- 

 dial leaves, f, the recess, w, the stalk. 



iir. 



