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PLATE II. LETTER II. 
CRUCIFORM FLOWERS. 
Cheiranthus incanus. Stock- Gilliflower. 
a A flower of the stock, showing the four 
petals and the cruciform shape of the 
corolla. 
b A back view of it, exhibiting the calyx, 
consisting of four leaflets, and bulging 
out at the bottom. 
c A single petal separated, to show the 
lower narrow part, called unguis , or 
the tail; and the upper spreading 
part, named lamina , or the border, 
emarg-inate or notched at the end. 
d A section of the calyx, with the single 
pistil and six stamens in their proper 
situation. 
e The six stamens, two of which are sensi¬ 
bly shorter than the other four. 
f The pistil separated from the other parts. 
g A single stamen. 
h The fruit, seed-vessel, or pericarp, called 
a silicjiie, opening from the .bottom 
b 2 
