Leafy Mosses 



Spore-case 

 with lid re- 

 mo ved to show 

 single row of 

 teeth. 



Neckera pennata. 



Gymnostomum ca2- 

 careum. Spore-case 

 without teeth. 



Hypnum uncinalum. Por- 



teeth may vary greatly in shape and num- tion of penstome to show 

 her; as a rule, there are four, sixteen, thirty- ciUa f nd teeth f the inner 



' membrane and one tooth 



tWO, Or SiXty-four. of outer membrane with 



The spore-case when immature is often annuius at the base. 

 covered by a cap or veil (calyptra). The veils vary in shape 

 and in size, sometimes persisting a long time, sometimes falling 

 away in the early stages. 



All leafy mosses have 

 leaves which may vary 

 in size, in shape, in 



Funaria hygrometrica. Spore- 

 cases borne on pedicels grow- 

 ing at the summit of stem. 



Thuidittm 

 delicalulum. 

 Spore - case 

 sho wi ng 

 two rows 

 of teeth. 



Brachythecium rivulare. Spore-case borne on a 

 pedicel growing from the side of the stem. 



3' 



