192 BOTANY 
in the transportation of living plants. They all belong to 
the genus Sphagnum. (2) Order Andrzacez, composed of 
a few small and rare mosses. (3) Order Phascacee, small 
mosses with but little development of a leafy stem, and a 
persistent protonema. 
402. (4) The True Mosses (Order Bryacez) include the 
great majority of the mosses of the country. They are 
usually bright-green (in a few genera brownish), and in 
Fig. 107.—A, three spores of a Moss germinating; B, protonema of a Moss; K, 
a bud from which 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 #), 
Mniun, Funaria (F. hygrometrica, Figs. 105, 106, A to F, 
