— 54— 



(The figures below the line I represent Funaria hygrometrica; those be- 

 low the line II, Physcontitrium turbinatjitn.) 



I. i, Outline of leaf ; 2, deoperculate plants ; 3 apex of leaf, showing cos- 

 ta ending below apex ; 4, a portion of the mouth of the capsule after the op- 

 erculum has fallen, showing annulus and peristome ; 7, stoma from base of 

 capsule. II. 8, Apex of leaf, showing costa terminating below the leaf- 

 apex ; g, spores ; 10-13, capsules in various stages ; 14, a section of the mouth 

 of capsule and operculum, showing annulus and transversely elongated 

 cells at the mouth of capsule. 



[Taken from Mrs. Britton's Observer articles, by permission.] 



lost its peristome. There are several species of Physcomitrhuii 

 in the United States, but P. turbinatum is by far the most fre- 

 quent and will be readily recognized from the figures. It is common 



