An Unusual Plant of Cheiranthus cheiri L. 243 
pellary nature of these structures was shown in one or more of the 
following ways: 
(a) An incurving of the margins, along which minute ovules 
were formed (Figs. 7, 9); 
( b ) the formation of a stigmatic surface, often swollen but 
always covered with minute excrescences as in the typical 
stigma (Figs. 7, 8, n, sg); 
(c) the outer surface was pale green and covered with a fine 
down as in normal carpels. 
Fig. 2 shows six “staminate carpels” (sc) joined to the normal 
central gynaecium only at the base, the upper parts being free. The 
central gynaecium is of the ordinary wallflower type. In Fig. 3 is seen 
a 3-lobed stigma in the centre of the flower, one free “staminate 
carpel” (sc), the others having fused with the wall of the central 
gynaecium. Fig. 4 shows a petal with the edges curling towards each 
other, while Fig. 5 represents a “staminate carpel” from the same 
