OF THE PISTILS. 67 
LESSON XVIII. 
OF THE PISTILS. 
Fig. 202. Section of flower of Strawberry,—ovaries many, on a raised torus. 
Fig. 203. Section of a Rose,—ovaries sunk into a hollow torus. 
121. Tux pistils occupy the centre of the flower, at the end 
or centre of the torus. Their number varies in different 
plants from one to one hundred, or more. When they are 
several they stand arranged in a circle like the other organs. 
When they are many they are commonly heaped together in 
a spiral manner, and raised on the conical torus, as in Butter- 
cup, Strawberry, or sunk into the cavity of a hollow one, as 
in Rose. (See Figs. 202, 208.) 
122. The pistil consists, plainly, of three parts, as may be 
seen in Fig. 204. At the top is the stzgma (s), at base is the 
ovary (0), and between them is the style (sty). The style 
121. In what part of the flower are the pistils situated? What is their 
number? their arrangement? How situated in the Rose? 
122. Please describe the pistil and each of its parts. In what case is the 
stigma sessile? 
