368 A TEXTBOOK OF GENERAL BOTANY 
and an absorbing organ, or foot, which absorbs material from the 
parent plant (Fig. 410). In a few species of simple liverworts the 
sporophyte is a sporangium without stalk or foot (Figs. 401, 402). 

PRETEEN. 
ie PENS ODODE LON OSS 
SETS 
Wares ee 
Fic. 398. Section of a portion of the thallus of Riccia 
In the center is an immature archegonium ; the enlarged venter contains a large 
egg and above this a ventral-canal cell; in the neck there are four neck-canal 
cells. (x 190) 
CLASS HEPATICAE 
Gametophyte. Most of the Hepaticae live on the land in 
moist places, while a few grow in water. Some of them are 
found on the ground and others on the trunks or leaves of 
other plants. 
