62 



MOSSES WITH A HAND-LENS 



lighter-colored than in the last ; spores maturing in spring. Our 



most common species after aciculare, growing on exposed rocks 



on hills throughout our 



range, but apparently 



somewhat local. The 



form with obtuse peri- 



chaetial leaves which 



seems common in the 



Franconia Mountains is 



likely to be mistaken for 



fasciculare, unless the 



lower leaves be examined. 



Figure 25. Rhacomitrium microcarpum (From Bry. Eur.). I^eaves and 



leaf-structure. 



