SOME TYPES OF FLOWEELESS PLANTS. 



237 



urns, examine with the magnifying glass, and sketch it. Note the char- 

 acter of the material of which its outer layer is composed. 



Fig. 203. 

 A, longitudinal section of summit 

 of a small archegonium-bearing 

 plant of Funaria hyrometrica, a 

 moss ; tt, archegonia ; 6, leaves. 

 J5, an arcliegoniuni of the same 

 moss ; m, mouth ; h, neck ; &, 

 enlarged portion, containing 

 the oosphere. {A magnified 100 

 diameters ; £ magnified 550 

 diameters.) 



Sketch the uncovered urn, as seen 

 noting the little knob at its base and the 



Fig. 204. 

 A, a bursting antheridium 

 of Funaria hygrometrica, 

 a moss ; a, the anthero- 

 zoids ; B, the anthero- 

 zoids more strongly 

 magnified, in the mother 

 cell ; i;, antherozoid of 

 pigeon-wheat moss (Poly- 

 trichum) . (All much 

 magnified.) 



through the magnifying 

 circular lid. 



