THE TRUE MOSSES 



523 



Fig. 345. — Horned-liverwort. Young sporophyte (fig, scj) showing the be- 

 ginning.s of a columella (c, c) and spores (s). L, L, calyptra, •ij'^. 

 (Hofmeister.) 



Fig. 346. — Peat moss (Sphagnum acutifolium, Peat moss Family, Sphagna- 

 cew). A, spore, highly magnified. C, spore (s) germinating in water 

 producing a green branched thread or protonema (n, n') from which 

 buds (pr, pr) arise and produce gametophytes. (Schimper.) — Plant 

 common in bogs. 



Fig. 347. — Peat 

 moss. Flat pro- 

 tonema (pr, pr) 

 produced on 

 moist earth, giv- 

 ing r i s e to a 

 gametophyte(7«) 

 and pseudo-roots 

 (u'),>-i». (Schimp- 

 er.) 



