THE BRYOI'HYTA 



315 



Marchantia. Section through the male receptacle, showing thi 

 antheridia sunken below the surface. 



188. 1 IG ISM 



Fig. 188. — Marchantia. Section through female recoptaelc. a, archogonia. 

 two at left unfertilized, two at right with young sporophytes. m, membranous 

 fringe. I, finger-like lobe. 



Fig. 189. — Marchantia. Sporophyte, developed from a fertilized egg. The 

 enlarged capsule contains spores and elaters. It is supported by a stalk or seta, 

 which is embedded in the tissues of the gametophyte by a foot. X 4.5. 



