Mosses and Lichens 



Veil (calyptra). Narrow, long-beaked. 



Pedicel (seta). Brown-red or purple, variable in length. 



Spore-case. Oblong-elliptical or sub-cylindrical, regular or 

 incurved. 



Lid (operculum). Conical, beak long, straight, or curved. 



Teeth (peristome} . Long and slender, deep-red and twisted 

 two or three times. 



Annulus. None. 



Spores. Mature in winter or spring. 



Cross-sec- 

 tion of leaf to 

 show round 



Sporophyte 

 with twisted 

 teeth and 

 twisted pedi- 

 cel. 



Leaves. 



Perichaetial 

 leaf. 



Spore-case with veil. 



B. ungumdata. 



174 



Spore -case 

 with veil. 



Spore-case 

 with lid. 



