(365 ) 
The development of the embryo in Cucurdrta has not been 
followed out. Only a few early stages were observed. The 
development of the embryo appears, however, to proceed 
slowly, and considerable endosperm may be formed before 
the first division of the odspore takes place. The condition 
represented by figure 138 was found in another garden 
variety, the Chile squash. In this it is apparent that the first 
walls to be formed are transverse, but the succeeding ones 
may be anticlines and probably give rise to a mass of cells 
similar to those found in the other forms. 
Sicyos 
About the time that the young ovule begins the turning 
which finally brings it to the anatropous position the young 
spore-mother-cell appears below the epidermis at the apex 
of the nucellus. The same difficulties which hinder the 
identification of the early archesporium in Cucurdcta and 
some other forms are present here. But the presence of two 
or three tabular cells between the sporogenous cell and the 
epidermis seems to indicate that the structures in question 
originate in the usual manner. The tapetal cells undergo 
repeated divisions tangentially, and by the time the spore- 
mother-cell is ready for division it has become covered by a 
long axial row of cells. In fact, the divisions have followed 
so slowly on the side toward the chalaza, that the sporogen- 
ous cell at this stage is much nearer to the chalaza than to the 
apex of the nucellus. The relative development of the integu- 
ments at this period is similar to that observed in other forms. 
The spore-mother-cell apparently undergoes the usual 
divisions in the formation of the megaspore. While these 
divisions were not observed, nor were the four potential mega- 
spores, the presence of a disintegrating mass of material in the 
vicinity of the megaspore (fg. 147) would be in favor of such 
an assumption. Furthermore it would appear that the func- 
tional megaspore is the lowest one, as in the previous cases. 
The two-celled embryo-sac was not observed. But figures 
142 and 143 show the four-celled and eight-celled stages 
