168 BRITISH MOSSES. 



PHTSCOMITRIUM. 



Fig. 11. Generic Chaeactee. 

 Capsule (a) erect^ pyriform; much wrinkled; lid obtuse or apiculate. Peristome 

 none. Calyptra (&) large and bladder-like, hence the name of the moss. 



Fig. 12. Phtscomiteidm eeicetoeum. 



Narrow-leaved Bladder Moss (a) . 



Colowr. TeUow green. 



Stems. Very short, in patches. 



Leaves (b) . Oval-lanceolate, narrow, bordered. 



Flowers and Fruit. Monoicous ; capsule erect, pyriform. Spring. 



Locality. Moist banks. 



Fig. 13. Phtscomiteiitm fasciculaee. 



Fallow-field Bladder Moss (a) . 

 Colour. Dark green. 

 Stems. Very short, in patches. 



Leaves (&) . Long and narrow, lanceolate acuminate, not bordered. 

 Flowers and Fruit. Monoicous ; calyptra much inflated, splitting on one side. 



Capsule small. 

 Locality. Fallow fields. 



Fig. 14. Phtscomiteidm pteifoeme. 



Pear-fruited Bladder Moss {a) . 

 Colour. Light green. 

 Stems. Very short, tufted. 

 Leaves (b) . Oval-oblong, apiculate, spreading ; nerved almost to the apex, base 



sheathing, slightly serrated. 

 Flowers and Fruit. Monoicous ; capsule erect ; calyptra much divided at the base. 



Spring. 

 Locality. Moist banks, in great abundance. 



