MONOCOTYLEDONOUS PLANTS. 11 
The general appearance of a common sedge may be learned 
from Fig. 33, and the flower-cluster and the flower under- 
stood from an inspection of Fig. 212. 
The species are even more difficult to determine than those 
of grasses. 
Fic. 212. — Inflorescence, Flower and Seed of a Sedge. 
(Great Bulrush, Scirpus lacustris.) 
1, magnified flower, surrounded by a perianth of hypogynous bristles ; 2, the 
seed ; 3, section of the seed, showing the small embryo enclosed in the 
base of the albumen. 
ARACEZ, ARUM FAMILY. 
Perennial herbs, with pungent or acrid juice, leaves often 
netted-veined, small flowers (perfect or imperfect) clustered 
along a peculiar fleshy spike called a spadix and frequently 
