158 ELEMENTS OF BOTANY 
diagram of the Iris family (Fig. 116, II) the three dots 
inside the flower indicate the position of a second circle 
of stamens, found in most flowers of monocotyledons, but 
not found in this family. 
187. Review Summary of Chapter XV. 
The organs of the flower and their arrangement.! 
ls 
Kinds of flower as regards symmetry. . . . . J oO: 
| 9 
~ de 
The receptacle. 
r appearance of circles. 
The perianth . J apparent union of sepals. 
. apparent union of petals. 
: (ies 
ae SERSH By oe ey te Uae OR OR 
The stamens . 4 : U3. 
| real union. 
| apparent union. 
The carpel. : 
gale 
| parts J >, 
The pistil .. ; at 3. 
simple pistil. 
compound pistil. 
: ir le 
types of placenta . . . . . . ‘ 2, 
The ovary . as 
| ( Ae 
positions relative to other circles. te 
v 
1 Wlustrate by sketches when possible. 
