IN CRUCIFER. 123 
with Mr. Lindley’s; particularly as regards the D 
of the outer series. 
With regard to the composition of the pistillum, I incline 
to Mr. Lindley's opinion. I think that there are evident 
traces of four stigmata, and consequently of as many styles : 
and these stigmata are so placed, namely opposite the sepals, 
that the idea of their forming, or being portions of two stig- 
mata must be incorrect. If such were the case, the line of 
division of either, should be opposite the lateral sepals. I 
may here remark, that this opinion seems to me to derive 
considerable strength from the consideration of the form 
and structure of the style and its supply of vascular (?) fas- 
cicles : these are four—occupying the axis of the four angles. 
'The centre is occupied by a transverse (?) opaque line: whe- 
ther vascular or not, I am unable now to say. The number 
likewise of vascular fascicles occupying the axes of the com- 
ponent parts of the fruit are 4. If the placentiferous valves 
are portions of the sterile (right and left) valves, such would 
not be the case. Then taking into consideration the want 
of continuity of structure between the two, I think there is 
very little doubt of the accuracy of Mr. Lindley's theory. 
The accompanying diagram (Pl. 30,—Fig. 7.) will explain 
further my ideas. 
In Thlaspi I find traces, although obscure, of a quater- 
nary division of the stigma, and as in the instance cited 
before, the divisions are opposite the sepals, a fact on which . 
great stress is evidently to be laid. "The alternation of the 
four larger stamens which are opposite the anterior and 
posterior sepals, is obscure, still the anticous and posticous 
stamina, which should be opposite the placenta, are evidently 
wanting; the smaller are as usual opposite the lateral sepals, 
while the glands instead of being opposite the sepals, are 
opposed to the petals. The larger stamina still seem to 
belong to the petals, some allowance being made for dis- 
placement; in this case the 5th series, or the second caly- 
cine one, is totally wanting. ‘Thus probably, 
Thlaspi is 16 androus. The following numbers refer to 
the series as I have supposed them. 
