THE ANGIOSPERMS 101 
student should look at these families for the purpose of 
making comparisons, and should obtain a definite idea of the 
kinds of plants found in each family. Carefully written 
notes describing the distinguishing characters of each fam- 
ily should be prepared. The first three lessons are upon 
Monocotyledons, the rest upon Dicotyledons. 
Jack-in-the-pulpit allies —Jack-in-the-pulpit (Arisema) 
as a type. 
Study and make drawings showing general characters of 
root and bulb, stem, leaves, and spathe. Note in detail the 
spathe, the column—the spadia—within it, and the flowers 
borne on the spadix. Stamens and pistils in separate flow- 
ers. Note their positions. Do they ripen at the same time? 
Is there any adaptation to effect pollination in any particu- 
lar way? Is the leaf of this plant a typical Monocotyledon 
leaf? 
LESSON LXIIT 
Lily allies—Lily (Lilium), or sweet flag (Iris) as types. 
Note roots, bulb, stem, leaves, and flowers. Make a dia- 
gram of the floral organs. 
LESSON LXIV 
Pondweed allies——Pondweed (Potamogeton), or cat-tail 
(Typha) as types. 
Besides noting features above mentioned, note especially 
the manner of bearing the flowers and the habitat of these 
plants. 
LESSON LXV 
Poplar allies—Poplar (Populus), willow (Salix), chest- 
nut (Castanea), oak (Quercus), and elm (Ulmus) as types. 
In addition to points mentioned above, special attention. 
should be given to the tree or shrub habit, the naked flow- 
ers, and the separation of the sporophylls into staminate and 
pistillate catkins. 
