130 MOSSES AND LIVERWORTS 



glisten among the green leaves like so many 

 diminutive jet beads. A ripe capsule which has 

 thus raised itself out of its sheltering envelope 

 is shown at Plate IX. fig. 10 ; it was taken from 

 the Two-horned Liverwort (Cephalozia bicuspi- 

 data), a delicate little plant, already described, 

 with tiny, transparent two-toothed leaves, a fre- 

 quent inhabitant of woods and other shady places, 

 growing in tangled masses on the ground, or on 

 rotting tree stumps, or creeping in and out among 

 the smaller growths on some moss-covered bank. 

 Pig. 11 of the same plate represents the cup 

 (colesule) of the Plat-leaved Liverwort (Radula 

 complanata), a small round-leaved plant that grows 

 on the trunks of trees, clinging very closely to 

 the bark, and forming dark green patches, some- 

 times of considerable size. Here we get a glimpse, 

 through the thin, semi-transparent wall of the 

 cup, of the swollen veil, which has been burst 

 open by the capsule. The latter, too, in this 

 particular instance, has raised itself up, at the 

 end of its long, glossy white stalk, through the 

 wide-open mouth of the cup, and has matured 

 and discharged its burden of spores. Pig. 2 of 

 the Prontispiece is another example. 



Plate IX. fig. 4 is an instance of the same 

 kind of thing in one of the frond-like plants, 

 the Porked Liverwort (Metzgeriafurcata). Here 

 there is no covering envelope to protect the fruit- 

 bearing organ. 



