276 ESSENTIALS OF BOTANY 
Fic. 202. Portions of Fertile Plant 
Fie. 201. The Antheridium of a Moss (Funaria). 
of a Moss (Funaria) and its 
Contents. A, longitudinal section of summit 
of plant (Xx 100); u, archegonia; 2, 
a, antheridium ; b, escaping sperms leaves. B, an archegonium (X 550) ; 
(X 350); ¢, a single sperm of an- e, enlarged ventral portion with cen- 
other moss (Xx 800). tral cell; n, neck; m, mouth. 
