24 



BEITISH MOSSES. 



towards the production of the gemmee, and a lower tempera- 

 ture towards that of spores. The two forms are shown in 

 Figs. 12, 13 and 14. Fig. 14 shows the plant surrounded by 

 its stalked heads of gemmae (g y}. The plant, as its name 



Fi&. 12. 

 A ulacomnium 

 p alu st r e. 

 Male plant of 

 spore-bearing 

 form, after 

 Dillenius. 



Fia. 14. 



Aulacomniu m 

 palustre. Grem- 

 bearing form, 

 after Dillenius. 



Fio. 13. Aulacomnium palus- 

 tre. Female plant of spore- 

 bearing form, after Dillenius. 



