192 BOIANT 



in the transportation of living plants. They all belong to 

 the genus Sphagnum. (2) Order Andrseacese, composed of 

 a few small and rare mosses. (3) Order Phascaceae, small 

 mosses with hut little development of a leafy stem, and a 

 persistent protonema. 



402. (4) The True Mosses (Order Bryacese) include the 

 great majority of the mosses of the country. They are 

 usually bright-green (in a few genera brownish), and in 



^^^■Vyi.^A, three spores of a Moss germinating; B, protonema of a Uoss; K, 

 bud from wliich a leafy stem will develop. Highly magnified. 



most instances live upon moist ground and rocks, or upon 

 the bark of trees; in a comparatively small number of 

 cases the species live in the water. They are undoubtedly 

 the highest of the class, and show a greater differentiation 

 of tissues than any of the preceding orders. Among the 

 more common mosses are species of Dicranum, Fissi- 

 dens, Polytrichum, including the well-known Hair-cap 

 Moss (P. commune), Timmia, Bryum (Fig. 106, G and H), 

 Mnium, Funaria (F. hygrometrica. Figs. 105, 106, Ato F, 



