304 



HALF-HOURS IN THE GREEN LANES. 



covered with liehens, of a bright yellow, or siivery- 

 g*ey colour. The former is called Physciaparietina, 

 aad its structure is very remarkable. Under th> 



Fig. 242. 



Fig. 243. 



Frail of Tetraphis pelluciaa, 

 Peristome of four Teeth. 



Splachnum sphcericum, witu 

 eight bigeminate Tecih, anu 

 exserted Columella. 



Fig. 244. 



Fig. 245. 



BUW Tooth from Peristoitw 

 ofFissidens 



Peristoinc and Tympau'Utn ot 

 Pofjonabun aicida. 



