but two structures, the chit and 
the remaining space within the 
59 
for in accurate study we must be able to express briefly 
differences which are constant and in a measure specific. I 
have therefore adopted the binomal system, and have used 
.a* between the generic and specific name to indicate that 
the nomenclature refers to agricultural relations and does 
not take account of received botanical species, except by 
inference. 
Zea Mays, L. presents a number of agricultural species 
which can be readily identified, and with one exception, 
‘present characters which do not overlap, and which cannot 
Be mistaken. This exception is the separation of the Pop 
corns from the Flint corns, which for agricultural purposes 
must be kept distinct, and yet at times trespass over border 
lines which we establish. These agricultural or * species 
-are founded upon the character of the ripe kernel, and are: 
Zea * everta. The Pop Corns. 
‘The kernel split laterally shows two 
‘distinct structures : the chit and the 
corneous matter enveloping. In NEW ENGLAND POR 
‘some cases a fine white starchy line can be detected, and in 
other cases the appearance is of a flint, and the diminished 
size must aid in the separation, as also the property of 
» popping.” 
 Zea*indurata. The Flint Corns. gm 
In this class the split kernel shows ‘ 
three structures, the chit, starchy 
matter, and a corneous matter en- 
‘veloping. . 
Zea * indentata. The Dent Corns. 
Here we have visible in the split 
kernel, the chit, corneous. matter 
‘on the two sides, and starchy mat- 
ter extending to the summit. 
Zea * amylacea. The Soft 
‘Corns. The split kernel shows 


OUKEN OF THE PRAIRIE, 
a 

‘starchy matter which occupies 
‘pellicle. 
Zea * saccharata. The Sweet 
Corns. This class is at once 
known by the translucent horny ae, 
appearance, more or less crinkled AgVLTM: 

or wrinkled, and by the split kernel showing only the chit 
and corneous matter, no starchy matter being in general 
visible, although occasionally in single kernels a fine line 
may be detected. 
