Tree Mosses 



TREE MOSSES 

 Genus CLIMACIUM, Web. & Mohr 



The species of the Genus Climacium are large, resembling 

 miniature evergreen trees. They are common in shady woods, 

 in damp places on decayed logs, on roots of trees and on 

 hummocks in swamps, and will be easily recognised from the 

 photograph. 



The primary stem is creeping, and the secondary 

 erect and robust, with stout branches. The stem- 

 leaves are scale-like ; the branch-leaves oblong lance- 

 shaped with a thin vein, and 

 the leaves at the base of the 

 pedicel are long and sheath- 

 ing. 



The spore-cases are clus- 

 tered on long, erect 

 pedicels ; they are 

 cylindrical with a 

 beaked lid and a long 

 calyptra split up one 

 side and embracing the base. 



The peristome is double, the outer teeth large 

 and united at the base ; the inner keeled and 

 perforated. 



Branch leaves. 

 C. dendroides. 



Perichaetial 

 leaf (base of 

 pedicel). 



Spore-case with 

 veil. 



Top of spore-case 

 with columella ex- 

 tending above the 

 inner teeth. 



C. at-ndroidcs. 



Portion of peristome 



271 



