The Cedar Mosses 



Name. The Dainty Cedar Moss is most attractive ; it was 

 well known to the great Swedish botanist, Carolus Linnaeus, 

 who gave it the specific name delicatulum, dainty. 



Plant (gametophyte) . - -Three times feather-branched, the 

 primary stems densely rooting. 



Leaves. The stem-leaves densely crowded, enlarged at the 

 base ; branch-leaves broadly oval ; apex long-pointed ; base 

 concave ; vein strong ; margin serrate ; cells small, the apical 

 truncate and crowned with 2 to 3 acute papillae ; paraphyllia of 

 varied forms. 



Vertical section 

 of peristome show- 

 ing three cells of 

 the annulus on the 

 left and an inner 

 and outer tooth. 



Stern -leaf with 

 paraphyllia. 



Stem-leaf. 



Spore-cabe 

 with peris- 

 tome. Spore-cases with lids. 



Thnidimn delicatulum. 



Leaves at the base of the pedicel. Long-ciliate. 

 Habit of flowering. Mule and female flowers on separate 

 plants (dioicous). 



Veil (calyptra). Split up one side. 



Spore-case. Cylindrical, arched. 



Pedicel (seta}. One to one-and-a-half inches long. 



Lid (operculuni). Conical. 



Annulus. Double. 



Teeth (peristome). Double as in Hypnum. 



Spores. Mature in winter. 



Distribution. Europe, North and South America. 



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