210 



BOTANY: 



spiral threads of protoplasm, each provided with two cilia 

 (Fig. 123, D). 

 387. The female organ of Liverworts is called an arche- 



FlG.133.- 

 development, 



once, yjland ' , _ __ „ , ^,^, ^ i.^^x.^x.«u 



in various stages. IX, germ-cell now developed into a spore-fruit, /, filled 

 with spores and elaters ; a, the greatly distended wall of the archegone. 

 X, immature and mature elaters and spores. All magnified. 



gonium, or archegone. It bears some resemblance to the 

 corresponding organ in the Stoneworts (p. 203), and, like 

 it, has an internal cell (the germ-cell) to be fertilized, sur- 



